FINALLY! After a Probable MS diagnosis made 12 years ago, and about 6 neurologists later, with lots of waffling back and forth, I found a Dr. who compared 2 brain MR's simultaneously on two computers and was 100 percent sure it is MS. That will go a long way toward helping with my disability case and he said explains all the brain fog issues I have been having. He did, however, say that is is PPMS, which did not surprise me because I was 40 when I was initially sort of diagnosed and it has been a slow downward spiral ever since, with no periods of remission, but also no really bad spells. Anyway, I wonder if any of you guys knows much about PPMS? My neuro said it is not a very common form of the disease, and that to date he can only treat my symptoms.