Just got back from a new doctor today who thinks my bladder problems ARE interstitial cystitis. (See "Does Anyone Else Have This?" post.) She feels that this is related to IBS and skin rashes I've been having. She decided to put me on prednisone. I know very little about this drug, but have heard it can cause diarrhea, anxiety and insomnia. These are three things I already have in abundance! I'm really scared to start taking this. Does anyone else have any experience with prednisone?