[annapurna]

There are a couple of potential reasons for autoimmune problems after ADR. One is a biofilm infection at the ADR site. Rich has quite a bit of data about that here and his other website. That's probably the hardest to diagnose and the easier of the two to deal with, although neither are easy. The second major one would be an allergic reaction to the alloy used in the Prodisc. It's fairly easy to test for that but there isn't much you can do other than pull out the Prodisc at great difficulty and expense and fuse in its place using something you're not allergic to. There are a number of posters who've talked about their allergy testing. That might be a starting point for you to go down that route.

Basically both mechanisms rely on the idea that you might have been near to the point of having an autoimmune problem before you had the additional insult and that was enough to push you over to the point of having it manifest. I've had a similar situation, manifesting differently but of the same character, arising from a mix of long-term allergies, poor diet, and air pollution.