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Published on: 1/29/2026
There are several factors to consider: ongoing belly pain with extreme fatigue can result from digestive disorders, infections, hormonal or metabolic issues, anemia, or problems with the liver, gallbladder, or pancreas. See below for specific red flags like weight loss, fever, bleeding, or jaundice that need urgent care, how doctors evaluate these symptoms, and practical steps you can take now; speak to a doctor if symptoms persist, worsen, or feel severe or unusual for you.
Ongoing abdominal pain combined with extreme fatigue can be confusing, frustrating, and disruptive to daily life. While many causes are mild and temporary, this combination of symptoms can sometimes point to an underlying medical issue that deserves careful attention. Understanding what may be happening in your body can help you decide when to monitor symptoms at home and when it's important to speak to a doctor.
Below is a clear, balanced, and medically grounded overview designed to inform—not alarm—you.
Abdominal pain refers to discomfort anywhere between the chest and pelvis. It can feel dull, crampy, sharp, burning, or bloated. Extreme fatigue goes beyond normal tiredness and often doesn't improve with rest.
When these two symptoms occur together and persist, it suggests the body may be dealing with inflammation, infection, hormone changes, nutritional issues, or problems with digestion or organs.
Doctors typically assess:
Many conditions can cause both abdominal pain and fatigue. Some are common and manageable; others require medical care.
Digestive issues are among the most frequent causes of abdominal pain.
Irritable Bowel Syndrome (IBS)
IBS can cause cramping, bloating, diarrhea or constipation, and fatigue. Stress often worsens symptoms, but IBS does not cause structural damage.
Inflammatory Bowel Disease (IBD)
Conditions like Crohn's disease or ulcerative colitis involve chronic inflammation of the digestive tract. Fatigue may result from inflammation, anemia, or poor nutrient absorption.
Gastritis or Peptic Ulcer Disease
Inflammation or sores in the stomach lining can cause burning abdominal pain and low energy, especially if pain interferes with eating or sleep.
Celiac Disease
An immune reaction to gluten can damage the intestines, leading to abdominal pain, bloating, diarrhea, and profound fatigue from nutrient deficiencies.
Some infections affect the digestive tract or nearby organs and may linger.
Chronic viral or bacterial infections
Certain infections can cause long-lasting abdominal discomfort and fatigue, even after the acute illness seems to pass.
Helicobacter pylori (H. pylori)
This stomach infection is a known cause of chronic abdominal pain and can contribute to ulcers and fatigue.
Post-infectious inflammation
Some people experience ongoing symptoms after food poisoning or stomach flu due to lingering gut sensitivity.
Hormones play a major role in energy levels and digestion.
Thyroid disorders
An underactive thyroid can slow digestion, causing bloating or discomfort, along with extreme fatigue and brain fog.
Adrenal or cortisol imbalance
While often over-discussed online, true medical hormone disorders can contribute to fatigue and abdominal symptoms.
Diabetes or blood sugar instability
Fluctuating blood sugar levels may cause fatigue and vague abdominal discomfort.
Low energy and abdominal pain may stem from what the body is missing.
Iron-deficiency anemia
Can cause fatigue, weakness, and sometimes abdominal discomfort. It may result from poor intake or slow blood loss in the digestive tract.
Vitamin B12 or folate deficiency
These are essential for nerve and blood health. Deficiencies can cause fatigue, digestive symptoms, and neurological changes.
Organs involved in digestion can cause symptoms that build slowly over time.
Gallbladder disease
Gallstones may cause upper right abdominal pain, nausea, and fatigue, especially after fatty meals.
Liver conditions
Inflammation or fatty liver disease may cause vague abdominal pain, low energy, and a general feeling of unwellness.
Pancreatic issues
Chronic inflammation of the pancreas can lead to persistent abdominal pain and fatigue, often worsened by eating.
The digestive system is closely connected to the nervous system.
This does not mean symptoms are "all in your head." The pain and fatigue are real and influenced by physical stress responses in the body.
While many causes are manageable, some situations require prompt medical evaluation. Speak to a doctor urgently if abdominal pain and fatigue are accompanied by:
These may indicate conditions that are life-threatening or serious and should not be ignored.
A healthcare provider may use:
Early evaluation often leads to simpler treatment and better outcomes.
While waiting to speak to a doctor, these steps may help clarify patterns and reduce symptoms:
If you're experiencing persistent symptoms and want to better understand what might be causing them, you can use a free Abdominal pain symptom checker to help identify possible causes and prepare meaningful questions before your medical visit.
Ongoing abdominal pain with extreme fatigue is not something to "push through." While many causes are treatable, only a qualified medical professional can rule out serious conditions and guide appropriate care.
If symptoms are persistent, worsening, or interfering with daily life, speak to a doctor. If anything feels severe, sudden, or unusual for you, seek medical attention promptly.
Listening to your body—and acting on persistent signals—can make a meaningful difference in both short-term relief and long-term health.
(References)
* Ghayoury B, Nitschke A, Staller K, Camilleri M. Overlap of chronic fatigue syndrome and irritable bowel syndrome: a systematic review and meta-analysis. J Clin Gastroenterol. 2014 Mar;48(3):214-23. doi: 10.1097/MCG.0b013e3182a468d6. PMID: 24430489.
* Chang L, Agarwal D, Brint S, Stenson WF, St. John V, Tillisch K, et al. Fatigue in irritable bowel syndrome: A systematic review. Neurogastroenterol Motil. 2018 Jan;30(1):e13206. doi: 10.1111/nmo.13206. Epub 2017 Aug 22. PMID: 28830113.
* Saps M, Van Bruggen R. Chronic abdominal pain and chronic fatigue in children and adolescents: common features, comorbidities, and treatment. Clin J Pain. 2017 Oct;33(10):947-953. doi: 10.1097/AJP.0000000000000497. PMID: 29080287.
* Varesi A, Cherubini A, Nigro E, Vitale E, De Palma GD, De Cicco M, et al. The role of inflammation and the gut microbiota in irritable bowel syndrome with a focus on chronic fatigue syndrome. Clin Exp Gastroenterol. 2020 Oct 26;13:499-509. doi: 10.2147/CEG.S261111. PMID: 33132717; PMCID: PMC7601569.
* Basset M, Ma C, Mikolajczak H, Lee T, Al-Bayati A, D'Souza R, et al. Fatigue in inflammatory bowel disease: a narrative review. Curr Opin Gastroenterol. 2021 May 1;37(3):204-209. doi: 10.1097/MOG.0000000000000732. PMID: 33716616.
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