Jan. I had lower left abdominal pain. I have a high tolerance for pain but knew something was wrong since I couldnt move my bowels. Went to the ER and was diasnosed with Diverticulitus. Was admited for a few days with IV and no food & water. Discharged and few weeks later had a colonoscopy. Found to have diverticula and was told I had Diverticulosis. A month later pain came back, was put on meds again and scheduled for surgery. I had a left partial colectomy in April 2008. I am 37 years old. Two weeks ago I had nothing but diarhea for about 6 days. It was follwed with bleeding. Was admitted for one day to the check blood levels which were fine. Discharged and scheduled a colonoscpy next week. I think I have a partial large instestine blockage but they think just a fissure? I have constant abdominal aching, cannot move bowels but have constant pressure and when I try,nothing but red blood is in the toliet. I now have left pain in my back & maybe pass a small piece of feces but blood