Hi ! Good evening. I am Dr Shareef answering your query. As you have got almost all the tests done for your problem, I would advise you for the following few: 1)In case you eat from outside, I feel that you may be sensitive/allergic to gluten, which is found in many fast foods containing wheat, pasta, etc. This is not easy to diagnose, and the best way is to exclude all kinds of fast food you consume in outside eating joints (if this is the case with you). It is best to have home cooked food with more of roughage or carry the same with you if you are busy. Gluten sensitivity can give rise to all the symptoms you have described. Some modification in your diet like more of roughage, enough liquids, avoidance of oily, fried, and fast food, and avoidance of alcoholic beverages and smoking if you do. I suggest you to consult a gastro-enterologist along with a dietician on this aspect of the diagnosis, which possibly might not have been considered until now. The gastro-enterologist will be able to diagnose with few biochemical tests along with a possible repeat endoscopy with biopsy of the intestinal mucosal wall, while the dietician can guide you on your food that you can consume pleasantly. Also there is a need to exclude co-existing amoebiasis which is very common globally and treat it if positive by a stool test for ova and cyst. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. I wish you an early recovery. Dr Shareef.