Thanks so much for the info! My sister just got diagnosed with Crohns today.. so I also wonder if this is what I have.. as they thought it was at first, but had a negative endoscopy/colonoscopy, they wanted me to do the pill capsule, but I never did, as my GI symptoms got better with my IVIG (I'm on for neuro stuff).. i presume crohns would respond to IVIG!?