I’ve had three colonoscopies and honestly I’d rate it lower on the pain/stress ladder than most dental work. One second you’re in a gurney waiting for them to start, next minute you wake up and ask them when they’re starting and they laugh and say “we’re done already”. No pain, no discomfort- nada.
I never had any issues with the prep, and the last one I did was new and even easier, cause you don’t need to drink as nearly as much.
Not wanting “something up your ass” is something you say when you’re 16, at least in a medical context. Let me tell you, you won’t even be able to use your asshole if they discover late stage cancer because you skipped out on your colonoscopy.
I had my first one at like 42 for diverticulitis, and that’s when they discovered polyps and I’ve had to have one every 3 years since.