I also do not understand why your rheumatologist didn't suggest Remicade to you. I know a rheumatologist who has many of her patients on it. You do have a dilemma and I agree with you. I wouldn't want to be on two immunosuppressants either, not does my GI doctor want me on two. Did you take Humira for UC or RA?
I agree with fruitgirl. Surgery may be your best option at this point.
By the way, we share the same name...Christine Marie. Praying that you will find relief.