I'm fine now!
One week after treatment I had a count of 234k, 6 weeks after treatment, when all the IVIg should have been out of my body, I even had 394k. Which is very very very good!
According to my hematologist, it won't be anything chronic, not "idiopathic" but entirely campath-related. The campath was still in my body 6 months after campath-treatment, and even now there could still be traces left.
I'm staying really vigilant about all those things, but the future is looking bright again. I even have "permission" to get pregnant again
(the fertility autoimmune issues according to Dr Beer just "are", like ms just "is"... indeed, the immune system does not recognize the baby which leads to destruction... but it is not known whether campath or ms or anything else might be a cause)
And fortunately still no flare-ups or progression from ms