I just had a colonoscopy a few weeks ago because of some minor bleeding. Ended up just being hemorrhoids and a small polyp. Definitely worth having the peace of mind.
The worst part or the prep was not sleeping much that night because I was up until 3am. Watching TV most of the night was relaxing, though. After the procedure I took it easy all day while the propofol effects wore off.
Don’t wait to have a colonoscopy. The prep isn’t that difficult!