I have got to have a colonoscopy on the 4th January. I last had one done almost 5 years ago and it was horrific. Even after sedation it was so painful they had to stop. The prep also didn’t clear my bowel out fully. I have been diagnosed with slow transit constipation and had 1/3 of my large bowel removed 2 1/2 years ago. My bowel was very long and loopy before my surgery and I kept getting volvolus . I told my gastro that the last one I had was really painful and he said it wouldn’t be as bad this time. I’m not convinced. Has anyone else had a bad experience having a colonoscopy? I would rather have a general and be totally knocked out.