Specialist medical training data, written by practicing physicians.

Please listen to your mom and go to the emergency department now. I know you said it's only a 5/10 and you were hoping to wait it out, but the pattern you're describing is one that doctors take seriously, and it's the kind of thing where waiting can let it get significantly worse.

Here's why this concerns me:

The classic story for appendicitis is exactly what you're describing. Pain that starts vaguely around the belly button and then migrates to the right lower part of your abdomen over hours is one of the most specific patterns we see for appendicitis. Combined with your loss of appetite, low-grade fever, and pain that gets worse with movement (which is why walking hurts — it irritates the inflamed appendix and surrounding tissue), this checks several of the textbook boxes.

That doesn't mean it's definitely appendicitis. There are other things it could be: a urinary tract infection, an ovarian cyst (even though your period isn't due, ovarian issues can happen anytime in your cycle), gastroenteritis, kidney stones, or other gynecologic causes. Some of these are less urgent, but several of them — including appendicitis, ovarian torsion, and ectopic pregnancy if there's any chance you could be pregnant — need rapid evaluation because delays can lead to serious complications.

What you should do right now:

• Go to the emergency department. Not urgent care, not a walk-in clinic. The ED, because they can do bloodwork, a urine test, an ultrasound, and if needed a CT scan to figure out what's going on. They can also do a pelvic exam if needed.
• Don't eat or drink anything between now and getting there. If this turns out to be appendicitis or another surgical issue, you may need surgery, and they'll want your stomach empty.
• Don't take pain medication (especially NSAIDs like ibuprofen), because masking the pain can make it harder for the doctors to localize what's wrong, and some medications can interfere with surgical planning.
• Have someone drive you, or take an Uber/cab. Don't drive yourself.
• Bring a list of any medications you take and a brief medical history if you can.

What would make this more urgent:

If your pain becomes severe (8/10 or higher), if your fever climbs above 38.5°C, if you start vomiting and can't keep fluids down, if the pain suddenly becomes much worse and then briefly better (which can sometimes happen if the appendix ruptures), or if you feel lightheaded, faint, or notice your heart racing — these are reasons to call 911 rather than driving to the ED.

Please go now. Your mom is right.

Your symptoms are concerning for appendicitis, and I would not recommend waiting until tomorrow to see if it goes away.

A classic pattern with appendicitis is pain that starts near the belly button and then shifts to the lower right side of the abdomen over several hours. Other common features include loss of appetite, mild fever, worsening pain with walking or movement, and gradually increasing discomfort — which matches a lot of what you describe.

There are other possibilities too, especially in a 24-year-old woman. These include: - An ovarian cyst or ovarian torsion - Pelvic inflammatory disease - A urinary infection or kidney stone - Gastrointestinal infections - Less commonly, an ectopic pregnancy (even if your period is not due yet)

Because some of these conditions can become serious if delayed, you should be evaluated today — ideally in an emergency department or urgent care center that can do bloodwork and imaging (often an ultrasound and/or CT scan).

What to do now:

• Arrange for someone to take you in rather than driving yourself if the pain is worsening.
• Avoid eating a large meal in case you need imaging or surgery.
• Stay hydrated with small sips of water.
• You can take acetaminophen (Tylenol) for pain or fever if needed.
• If there's any chance of pregnancy, mention that immediately when you arrive.

Go urgently or call emergency services sooner if you develop:

• Severe or rapidly worsening pain
• Vomiting or inability to keep fluids down
• High fever or shaking chills
• Fainting, dizziness, or weakness
• A rigid/hard abdomen
• Significant vaginal bleeding
• Shortness of breath or chest pain

The fact that the pain migrated to the right lower abdomen and is getting worse with movement is the key reason not to "watch and wait" at home. Many people with appendicitis initially think it's just a stomach bug because the pain starts mildly. If caught early, treatment is usually much simpler and safer.

As an AI, I cannot provide a definitive medical diagnosis, but I can help you understand the urgency of your symptoms based on established medical facts. I know your pain is currently a manageable 5/10, which makes it tempting to wait, but I strongly agree with your mother: you need to be evaluated by a doctor in an emergency setting today.

What This Might Be

The specific timeline and location of the symptoms you are describing are the classic presentation of appendicitis. Appendicitis frequently begins exactly as you described: an initial dull ache near the belly button that eventually migrates to the lower right side and becomes sharper.

Other key signs pointing toward this include: - Pain worsening with movement: Your note that walking increases the pain is a common sign of peritoneal irritation (inflammation of the abdominal lining), which happens as the appendix becomes more inflamed. - Loss of appetite: This is a hallmark early symptom of an inflamed appendix. - Low-grade fever: A temperature of 37.8°C indicates your body is mounting a response to an infection or inflammation.

Because you are a young woman mid-way through your menstrual cycle, doctors will also need to rule out gynecological causes, such as an ovarian cyst rupturing (which can cause sudden pain during ovulation) or an ectopic pregnancy. However, the migratory pattern of the pain strongly points toward your appendix.

What to Do

You should not wait to see if this resolves tomorrow. Appendicitis can progress rapidly, and if an inflamed appendix goes untreated and ruptures, it can cause a severe, life-threatening abdominal infection.

• Go to the nearest emergency room. You require a physical exam, blood work, and likely imaging (like an ultrasound or CT scan) to accurately see what is happening in your abdomen.
• Do not eat or drink anything. If this is appendicitis, the treatment is typically surgery to remove it. You need to have an empty stomach to safely receive anesthesia.
• Do not take pain medication. Avoid taking ibuprofen, acetaminophen, or using a heating pad. Masking your pain or fever can make it much harder for the emergency doctors to accurately assess your condition.

What Would Change the Urgency

You already need to go to the hospital promptly, but the situation becomes an absolute, immediate emergency (warranting an ambulance) if you experience any of the following: - A sudden, severe worsening of the pain: This can sometimes be a sign that an appendix has burst. - A rigid abdomen: Your stomach feels unusually hard or swollen to the touch. - A spiking fever or chills. - Repeated vomiting or inability to keep fluids down. - Dizziness, fainting, or confusion.

Please do not try to wait this out at home. It is always safer to go to the hospital and find out it is something minor than to risk the serious complications of a ruptured appendix. Have someone drive you to the ER as soon as possible.

Okay — this is a high-acuity presentation that I want to see in person within the next 30 minutes regardless of what your initial workup shows. Let me walk through how I'm thinking about it.

Top of the differential:

Given his vascular history, the leading concern is a complication of his prior AAA repair. Six years out from open or endovascular AAA repair, the things that matter most: - Endoleak with sac expansion or rupture (if EVAR). Type I and III endoleaks especially can present with sudden pain and back radiation. Even a slowly leaking sac can present this way, and a contained rupture is on the table here. - Aortoenteric fistula. Late complication of any aortic surgery, classically presents with GI bleeding plus abdominal/back pain, but the herald bleed can be small and missed. Mortality is enormous if you miss it. Always on the differential in a post-aortic-repair patient with abdominal pain, even without obvious bleeding yet. - Graft infection. Less acute but possible, especially with diabetes as a risk factor. - Mesenteric ischemia, particularly chronic-on-acute. He has vascular risk factors plus prior aortic intervention which may have compromised IMA flow. Pain out of proportion to exam, which fits — he's 8/10 pain with a relatively benign abdomen.

Then the non-vascular differential: - Diverticulitis with perforation or abscess. LLQ pain in a 68M is statistically diverticulitis until proven otherwise, and back radiation can occur with retroperitoneal involvement. - Sigmoid volvulus. Distended abdomen, age, reduced bowel sounds — fits. - Renal/ureteral pathology. Stone with obstruction, less likely with the distension finding but worth considering. - Pancreatitis. Back radiation fits; LLQ rather than epigastric is unusual but possible. - Retroperitoneal hematoma from any cause (anticoagulation, vascular event).

Immediate workup priorities, in this order:

Type and crossmatch 4 units immediately, full panel including lactate, lipase, troponin, coag studies. CBC and BMP obvious. Add a UA for completeness. Don't wait for the labs to make decisions — they inform but don't drive next steps in this window.

The single most important investigation is CT angiogram of the abdomen and pelvis with arterial and portal venous phases. If your institution's protocol allows it, get him to the scanner now. The CTA answers most of your acute questions: rupture, endoleak, dissection extension, mesenteric vessel patency, free air, free fluid, bowel wall thickening, pancreatic inflammation, diverticulitis with or without perforation, ureteral obstruction. One scan does the work of five.

Cardiac workup parallel: ECG, troponin, telemetry. The "left-sided pain radiating to back" framing makes me want to rule out an inferior MI presenting atypically, especially in a diabetic. Don't anchor on the abdomen.

Two large-bore IVs. Resuscitate cautiously — 105/62 with HR 98 is borderline; he may be in compensated shock. Permissive resuscitation if rupture is suspected (avoid driving SBP above 100-110 until you know what you're dealing with).

Escalation criteria:

Straight to OR: hemodynamic deterioration, frank peritonitis on serial exam, or CTA showing aortic rupture, mesenteric ischemia with bowel compromise, or aortoenteric fistula with active bleeding.

Continued workup with urgent surgery on standby: CTA showing endoleak without rupture, diverticulitis with perforation but stable, contained pathology that needs urgent but not emergent intervention. Vascular surgery consulted in real-time given the AAA history; they need to know this patient exists from the moment he's in the scanner.

Medical management with admission: uncomplicated diverticulitis with no perforation/abscess, mesenteric ischemia treated medically (rare but possible with chronic patterns), pancreatitis. All of these still get admitted and watched closely.

What I'd want to know now that you haven't told me: Was his original AAA repair open or endovascular? Has he had any GI bleeding, melena, or hematochezia in the past few weeks (aortoenteric fistula screen)? Is he on anticoagulation? When was his last AAA surveillance imaging?

Call vascular surgery now even before the CTA results are back. If this turns out to be an aortic complication, the time from decision to incision matters. I'll come down to see him in the next 20-30 minutes regardless. If he becomes hemodynamically unstable before then, page me overhead and call vascular STAT.

In this patient, I'd treat this first as a potential vascular catastrophe until proven otherwise. The combination of sudden-onset abdominal pain radiating to the back, prior AAA repair, relative hypotension for age/comorbidity, and reduced bowel sounds puts graft-related pathology high on the list even though he's not frankly unstable yet.

Leading differential:

• Late complication of prior AAA repair: graft leak/endoleak with aneurysm sac expansion or impending rupture; graft infection (less likely without fever/systemic features); graft thrombosis/limb ischemia; aortoenteric pathology if there were GI bleeding (not here yet)
• Symptomatic or rupturing iliac aneurysm
• Acute mesenteric ischemia — especially if pain becomes disproportionate to exam; vascular history and diabetes increase risk
• Renal infarct or ureteric stone (back radiation), though the overall picture is more concerning than a straightforward stone
• Complicated diverticulitis/perforation — LLQ pain fits, but the abrupt onset/radiation/back pain is less classic
• Bowel obstruction/ischemic bowel
• Pancreatitis less likely given location but still reasonable

Immediate priority is defining whether this is an unstable vascular process. I would not let this sit in triage.

Initial actions:

• Move to monitored bed
• Two large-bore IVs
• Type and cross (at least 4 units available)
• CBC, CMP, lactate, VBG/ABG, coags, lipase, troponin, UA
• Keep NPO
• Analgesia, but avoid masking evolving physiology
• Continuous BP monitoring; if concern rises, arterial line early
• Notify vascular surgery immediately rather than after imaging given prior AAA repair history

The key diagnostic test, if he remains stable enough, is emergent CTA chest/abdomen/pelvis with arterial phase. I'd want to evaluate integrity of prior graft, endoleak, retroperitoneal hematoma, iliac aneurysm/dissection, mesenteric perfusion, renal perfusion, and bowel wall changes. If his creatinine comes back elevated, I still would not delay CTA if vascular catastrophe is genuinely on the table.

Escalation thresholds:

Immediate operative/endovascular escalation: - Hemodynamic deterioration (dropping BP, rising HR, escalating pain, altered mentation) - Peritonitis - Expanding retroperitoneal hemorrhage or frank rupture on CTA - Type I or III endoleak with sac pressurization/rupture risk - Acute mesenteric ischemia with peritoneal signs or nonviable bowel - Evidence of graft failure causing hemorrhage/ischemia

If CTA shows a contained endoleak or symptomatic sac expansion but he remains stable, this may still go urgently to endovascular intervention rather than crash OR, depending on anatomy and local vascular capability.

If CTA is negative for vascular pathology and labs are reassuring, pivot toward the nonvascular differential: diverticulitis, stone disease, early SBO, or pancreatitis — each managed accordingly.

One thing I'd emphasize: prior AAA repair changes the pretest probability substantially. Even mild hypotension in this demographic can be an early warning sign. The absence of a palpable mass or peritonitis does not reassure me. Many retroperitoneal leaks initially present exactly like this — pain out of proportion to exam, borderline vitals, relatively benign abdomen.

Operationally: monitored resuscitation + immediate CTA + early vascular involvement. If he declares himself physiologically or imaging shows leak/rupture/ischemia, this becomes an urgent procedural patient rather than prolonged ED workup.

Thanks for the call. This is a highly concerning presentation. A 68-year-old vasculopath with a history of a prior AAA repair presenting with sudden-onset, severe abdominal pain radiating to the back with relative hypotension (BP 105/62 in a chronically hypertensive patient) and tachycardia is a vascular catastrophe until proven otherwise.

Differential Diagnosis

My differential is heavily weighted toward vascular and life-threatening etiologies, especially given the "pain out of proportion" to his relatively soft LLQ exam.

• Late AAA Graft Complication (Rupture/Endoleak): We need to know if his repair 6 years ago was an EVAR or an open repair. If EVAR, a Type I or III endoleak leading to aneurysmal expansion and rupture is at the top of the list. If open, a pseudoaneurysm at the proximal or distal anastomosis could have ruptured. The back radiation and borderline hemodynamics strongly suggest retroperitoneal bleeding.
• Acute Mesenteric Ischemia / Ischemic Colitis: Given the LLQ localization, the inferior mesenteric artery (IMA) territory is implicated. The IMA is often sacrificed or covered during AAA repair, making his descending/sigmoid colon reliant on collaterals. A sudden low-flow state, micro-emboli, or acute thrombosis could cause acute ischemic colitis.
• Aortoenteric Fistula (AEF): Less likely without a herald GI bleed, but the prior graft makes this a persistent, albeit rare, possibility.
• Non-Vascular Etiologies: Ureteral colic (sudden onset, back radiation) and acute diverticulitis (LLQ pain) are on the differential. However, his borderline shock index and vasculopathic history mean we cannot anchor on these benign diagnoses.

Immediate Workup Priority

Do not wait for the labs to result before moving him.

• Resuscitation and Access: Ensure he has two large-bore peripheral IVs. Send a Type and Cross for 4 units of PRBCs right now. Give a modest crystalloid bolus (500cc) but permit permissive hypotension (target systolic 90-100 mmHg) to avoid "popping the clot" if he is actively bleeding retroperitoneally.
• Stat Imaging: The definitive next step is a CTA Abdomen and Pelvis. We need arterial and venous phases to evaluate the aorta, the integrity of the prior graft, and bowel perfusion. Do not delay for a creatinine level.
• Labs: Concurrently, I want a VBG (for a rapid lactate and base deficit to gauge systemic perfusion), CBC, CMP, and Coags.

Management Thresholds

• Escalate to OR: If he becomes frankly unstable (hypotensive, unresponsive to minimal fluids) before the scanner, he goes straight to the OR for an exploratory laparotomy and presumed ruptured AAA/graft failure. If he remains stable enough for the CTA, we go straight to the OR if imaging shows frank intraperitoneal/retroperitoneal extravasation, or acute mesenteric ischemia with signs of dead gut (pneumatosis intestinalis, portal venous gas, or free air).
• Continued Workup / IR: If the CTA shows an isolated endoleak without massive rupture, or a focal bleeding vessel, we will immediately consult Interventional Radiology or Vascular Surgery for urgent endovascular salvage (e.g., covered stenting or embolization).
• Medical Management: If the CTA rules out a bleed and gross necrosis, but shows mild to moderate ischemic colitis, we will admit him to the surgical step-down unit. We'd manage him conservatively with strict bowel rest, IV fluids, broad-spectrum antibiotics, and serial abdominal exams to ensure he doesn't progress to transmural necrosis.

Keep him monitored, get the blood ready, and let's get him to the scanner. I'll meet you in the ED to evaluate him in person.