I am sure you have heard that the prep is the worst part! Talk with the anesthesiologist beforehand and let him/her know if you are feeling apprehensive about
it. Then he/she can reassure you and explain how and when things will happen during your procedure. Once the wonderful white medicine goes in, you will be out and they will pull you out of the fog when it is over. It is not bad at all. I actually enjoy the nap! The freakiest part to me was when they positioned the mouthpiece in my mouth before the sedation. It is just a plastic piece that keeps your mouth
open. It is not uncomfortable, but I remember worrying that they would start before I was knocked out totally. They didn't! I have had several colonoscopies and one endoscopy. The dr. took a biopsy of my stomach, but I never knew it and felt no after effects at all. I have never been bothered by the scope afterward either. My Crohn's has all been in the terminal ileum, though. If you have more symptoms down lower, you might feel some discomfort afterwards. My husband and I always go out to eat afterwards since I am starving. If you are prone to nausea, let them know and they can usually give you something to avoid it. Good luck!