Sherry, I was "diagnosed" with UC for 11 years before they found out I really had Crohn's disease. My colon got so bad that I, too, had it removed and I did get my life back. I also had fibro at the time.
Personally, I think you are quite brave to do the Remicade infusions. That's what my rheumy wanted me to do for the ankylosing spondylitis but I refused. I'm doing great now with the ibprofen and medications to help protect my stomach....along with the muscle relaxer they gave me and of course my supplements I've mentioned before.
I do hope this settles down for you soon. It sure isn't fun, is it.
Sherrine