Your symptoms of persistent exhaustion, excessive gas with foul-smelling flatulence, and constant hunger despite normal endoscopy and colonoscopy suggest that the problem is more likely functional or metabolic rather than structural disease of the stomach or intestines.
Common possibilities include:
• Gut dysbiosis / IBS (Irritable Bowel Syndrome) – imbalance of gut bacteria can cause foul gas, bloating, and irregular digestion.
• Carbohydrate malabsorption (like lactose intolerance or FODMAP sensitivity) which produces smelly gas due to fermentation in the colon.
• Small Intestinal Bacterial Overgrowth (SIBO) – can cause bloating, fatigue, and excessive gas despite normal endoscopy.
•
Vitamin deficiencies (especially
B12,
Vitamin D, iron) which may explain persistent fatigue.
• Blood
sugar fluctuations or
thyroid problems, which may cause excess hunger and low energy.
Since your endoscopy and colonoscopy were normal, serious diseases like ulcers, tumors, or inflammatory bowel disease are less likely, which is reassuring.
Next Steps
It would be reasonable to evaluate a few common underlying causes:
1. Basic blood tests
• CBC
•
Thyroid profile (
TSH)
•
Vitamin B12
•
Vitamin D
•
Fasting blood sugar /
HbA1c
2. Stool examination
• To rule out parasitic infection or malabsorption.
3. Consider SIBO breath test if symptoms mainly include gas, bloating, and foul smell.
4. A short trial of probiotics and digestive support (after physician advice) may help if gut flora imbalance is suspected.
Health Tips
• Try a low-FODMAP diet for 2–3 weeks (reduce onion, garlic, beans, cabbage, artificial sweeteners).
• Avoid excess dairy temporarily to see if symptoms improve.
• Eat smaller frequent meals instead of large meals to reduce gas formation.
• Include curd/yogurt, fermented foods, and fiber gradually to improve gut microbiome.
• Reduce carbonated drinks, very oily food, and processed
sugar, which worsen bloating and gas.
• Maintain regular sleep and hydration, as gut function is closely linked to lifestyle patterns.
If the fatigue and digestive symptoms continue despite dietary changes, a deeper evaluation of gut health and metabolic causes may be needed.
You can also share your recent blood reports or symptom pattern, and I can guide you more specifically during an online consultation if needed.