Hi there
Same problem my wife is facing, but its important first to test your stool and get blood tested, if any bacteria found get it treated, if anything changes then get colnoscopy.
I don't think you need a colonoscopy yet. You should get a stool sample first. For me, I have had general anesthesia and sedation, and I remember nothing of the procedure for both of them. Some people remember the procedure and others remember nothing. The colonoscopy is not as bad as you would think. The worst part of the colonoscopy by far (and almost everyone would agree) is the prep to get you cleaned out the day before.