I'm glad you brought up antibodies. I was on Remicade for 3 years and had excellent results - complete remission. Unfortunately, my doctor did not prescribe any other medication to take with it, so I developed antibodies, and it stopped working.
I wish I would have known about
antibodies at the time, because I would have brought it to my doctor's attention.
Hang in there, Laurie. Your colon just needs some time to heal.