Hi. Thanks for your query. Noted the history and understood your concerns. I can understand your problem well as this is quite a common problem, that is need to go for passing stool after taking anything orally. The commonest reasons are: An inflammatory lesions in the small intestine or large intestine. Another reason is irritable bowel syndrome. This can be diagnosed by the following: Clinical examination and evaluation by a General Surgeon or a Gastroenterologist followed by the tests: Blood, urine and stool. Colonoscopy CT scan of the abdomen. Upper GI endoscopy. All these will lead to a proper diagnosis and leads to a proper treatment. You will also have to find the foods and beverages that cause the problem and stop these altogether. Keep the control over the stress and anxiety. This will help you in a long run. If some specific problems is found get treated accordingly and if all the investigations are normal, you will have to be treated on the lines of IBS.