Hi Dear, Welcome to HCM. Understanding your concern. As per your query you have persistent abdominal pain post colonoscopy . Well there can be many reasons for symptoms you mention in query like food intolerance , food allergy , bacterial or viral infection , parasitic infection or inflammatory bowel disease. But in your case the symptoms are probably due to post endoscopy complication . Need not to worry. You should take plenty of fluids to re-hydrate. Take diet rich in multivitamins and avoid any oily sharp and fast food. Take diet rich in fibers as well. I would suggest you to consult gastroenterologist for proper examination and discuss the condition . Doctor may prescribe antibiotics like ornidazole , albendazole , omeprazole along with anaspas. For now eat light and non spicy , eat fresh fruits and vegetables and eat fruits like banana . Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari