my first one, i had no pain, no memory of it, and also no activity going on in there. that probably contributed to the pain free part of it.
My last one, on the other hand, omg. They gave me fentanyl and valium and the nurse said, you wont remember this, and it shouldnt hurt. was she ever wrong. mine was kind of an emergency colonoscopy, so i didnt have to do the prep that time, thank god. although I almost would have preferred it to the two enemas they gave me instead. holy mother of god, talk about pain.
I was totally awake and coherent for my last scope. my mom said she could hear me yelling at them from outside. apparently tell them to "take that god damn thing out of my ass NOW"
while it was nice to see everything, it was also kind of gross because i watched them do the biopsy, which entails ripping parts of my intestine apart and making them bleed and stuff. I would seriously consider being sedated. they'll show you everything after anyways, and answer any questions.