I have not been diagnosed with IBS but I know there is something wrong. I have frequent diarhea and abdominal pain for many years. I had a colonoscopy 3 days ago and have been dizzy and have much abdominal pain since. I used Nulytele before hand. I called the Dr the day after because I thought I might faint and he said I might be getting a cold and had nothing to do with the test. They removed one small polyp and Dr did not think I have ulcerative colitis so I am assuming it is IBS. Has anyone else had dizziness and pain for days after a colonoscopy? Is this normal?