When I had my colonoscopy, I had 10 polyps removed, but they were mostly in relation to diverticulitis inflammation, so I didn't have a cancer scare really. But I was sore, even though they said that I shouldn't experience any pain from polyp removal. I mean, they give you bowel prep, blow you up with air, do the colonoscopy, and remove tissue!! I think you are doing just fine! It shouldn't last long though, or you would want to check it out in a few days, I would think.
Renata