Periphial neuropathy symptoms and conditions

I have been on lyrica for over a year for the treatment of RSD (Reflex Sympathetic Dystrophy). The biggest side effect that I have had has been weight gain. I have gained approx. 55lbs since I was first diagnosed 3 years ago-- At least 30 of those have been in the last year from the lyrica. No matter how healthy I eat, or how much physical therapy I do I still can not seem to shed the pounds

I have been taking lipitor for probably 6 years. About 3 years ago, I experienced sciatica in the left leg for at least 9 months. The pain only lasted about 2 minutes but recurred 15-20 times a day. Now for about 2 years, I have had weakness in the left leg. Within the last 5 months or so, it has gotten to the point that I am constantly off-balance and feel as if I am walking like someone who has had a stroke. Others comment on this. It is embarrassing because I stumble and lose my balance like a drunk. Within the last 2 months, I have recurring pain in the right arm and shoulder - it last only about 5 minutes but is extremely painful. The balance problem led me to worry that I had a small stroke but after seeing this website, I am wondering if it is the lipitor. I am going off of it for at least a month and see if the symptoms disappear.