I had an operation for a colon resection re:diverticulitis. Over the last 6 years I have become bedridden due to acute pain. The Gastro group ran every possible test and see nothing that would be causing.I've been at the pain clinic of Univ. of PA. Taking 2 types of narcotics, don't relieve pain when I'm standing up and cause drowsiness most of day. Is there any help you can refer me to. Thank You.