Oh, Gayle! My heart goes out to you! My dad just went through this a couple of weeks ago and it was not fun. His gastroenterologist (new to the practice) suggested afterward that he eat some yogurt to get some "good" bacteria back into his GI tract, and also to drink a lot of fluids for a couple of days afterward to reverse any dehydration from the prep and the procedure. I hope it all goes very well.