About a month ago I woke up not feeling well, I thought I was getting the flu. I suffered with diarrhea like cramps for a few hours but no luck of a bm. I finally had a bm it was soft no constipation or anything I got extremely sick during. I was on the verge of passing out, blurred vision and horribly sweaty my clothes were soaked in a matter of a minute or two. I sat there and got my senses back started feeling alittle better but very weak and nausea. I layed down for awhile but the urges kept coming back that felt like diarrhea, I would go to the bathroom but no stool. It was just blood and tissue. That continued for the rest of the day with probably 6 episodes of passing nothing but blood and tissue. The second day I was still passing blood but also stool. The 3rd day it stopped totally. I have been having nagging abdominal cramps just about everyday since and my bms have increased to as much as 6 in a day sometimes. I have already seen my doctor and have a colonosopy scheduled, just wondering if anyone else has had this happen. And I have a lot of lightheadedness now during bms.