((Hugs)) My husband has Crohn's and I know how frightening it was for him to have many of the same symptoms you are having and not have a clue why. And he said Flagyl is pretty freaking nasty (metallic taste).
Definitely take the day before off, get those aloe wipes. For him the soda pretty much worked quick and then he was just weak all evening. The positive side? When my husband had one he was so loopy afterwards that he just took a long nap. His stomach had been giving him so many problems he hadn't slept more than three hours at a time. He still tells everyone the day of napping is the best part of the colonoscopy.
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan