Hi. Thanks for your query. Read the history and understood your problem. You have already mentioned IBS , a known problem that exists in you. You have a classical symptoms of pain in the abdomen every night , again indicating more of IBS as timing can be a problem in IBS, although you had the recent attack in the morning. It is always better to get the investigations repeated again. This is to rule out any new problem. I would advise the following: Blood, urine and stool. Ct scan of the abdomen Colonoscopy and Upper GI Endoscopy All these investigations will either prove or rule out any problems. -If the investigations are normal, get all the dosages rescheduled or altered.