Thanks for more encouragement (and moths, too!). No more diarrhea since Wednesday night - now I am dealing with a distended tummy that makes me look like I'm pregnant! Feeling nauseous too, but not sure if that is due to the antibiotics. One side effect of the Flagyl is a nasty, metallic taste in my mouth. All of the docs have said that an infection is the best-case scenario because the antibiotics will take care of it and that will be that. I sure wish they could have sent my "sample" to a lab to find out without doing the colonoscopy. Sigh . . . It's good to hear that others have gone through this test and survived though. I'm getting nervous about the prep - do I basically need to stay camped out on the toilet the night before the test? How fast does the stuff take effect? My paper work says to take the first dose of phospho-soda between 3pm and 6pm and the last dose 3 hours before the colonoscopy (scheduled for 8am). I sure don't want to lose control of my bowels at work or in the car!