Welcome Karmala

I was diagnosed at about the same age and for a year I had a stiff back all over and it was before I knew it was MS. I wasn't treated for it, but it only lasted for a year and then it was different symptoms. So yours might be temporary which is a good thing. I haven't taken that medicine but I took one for migraines called Topamax that made me dopey and those lasted nearly two years and then stopped. So try to get through it and hopefully your back will improve and you can cut down on or stop that medicine.