I had an adenomatous polyp surgically removed from my colon 5 weeks ago. A hernia developed in my mesentary and I had to be re-operated on 4 weeks ago to repair the hole and untwist my colon that had gone into the hole so it could pass gas liquid,etc thru it. 2 weeks ago I started having diarreha badly. I have terrible gas and diarreha as soon as I try to eat or drink anything. My stool sample did not show any C-diff bacteria, although I've taken Flagell for 2 weeks. I cannot eat ,sleep or do anything I was doing 3 weeks ago. I've lost about 20 lbs. I'm down to 130. What procedures can be taken to identify why this is happening. Bill Graham