Richard, we love to help and receive help, so come back and tell us what they find. It's fascinating (and cruel) that you have this CIDP. That sounds like an umbrella dx for several or many diseases. But now you know you have something--not imagination. I have not taken IVIG but some here have, mostly not for MS but for other things they have. Most of us, I would say, have more than one disease, especially if we've been "collectors" for some time.