I know it has been awile since this thread was started but I had to say something.
I have had fibromyalgia since 2004 and was very recently diagnosed with colitis caused by nsaid use (part of the FM med regimen). I was put on Flagyl. I guess I would rather have increased pain then unrelenting diarrhea.
Anyway, your post really hit a nerve with me because I feel I am very near the position you are in. My husband of nearly 14 years has told me that he is having a very hard time dealing with the FM. He is going through a pretty bad bout of depression over it. Now throw UC in the mix and I'm afraid of what this will do. We are not financially strapped but because of the FM I can only work part time. I'm afraid of how I would be able to take care of myself and a 12 year-old son.
Anyway, my prayers are with you in this difficult time.