Colonoscopy is easy, it's endoscopy that felt like near dear experience (I didn't take the sedative= fail). Worth it though. Also the Dr's and techs were far to busy talking about the next hairpin bend like they were rally driving. The satnav on the screen shows how far the scope has gone, I shit you not it really looks like the old Nokia snake gane. And when you have nitrous gas it all becomes very funny.
Ouch. I did the whole thing without anaesthetic, but didn't want to. I can't stand needles but thought I would have gas+air for the upper endoscopy! (only gave me gas for the Colonoscopy, but it felt nice to get high after being choked with the snake torch).
But holy shit it was terrifying, never doing that again.