Ive had severe D since November. Have had colonoscopy and blood tests but all seemed ok, apart from ESR which was raised at 22 (shows inflammation SOMETHERE apparently).Never had endoscopy as Dr seems reluctant to do one. However I feel that I need one.After exhausting all other treatments, Dr gave me some Lansoprasole tablets last month, to treat an Ulcer I think. He thought it was "worth a try".These helped and reduced the D from every day to once a week. Now Ive finished then and apparently I can have any more as Ive had the dose. Now its my 3rd day off the pills and my D is coming back and the pains are sharp and painful.Any advice PLEASE????