Some important things to know before being able to intelligently answer questions...
Do you have amalgam ("silver") fillings in your mouth?
Do you have crowns? What color are they?
Do you have tattoos?
Have you taken vaccines at any time in your life? Recently?
MS is a common result of mercury toxicity. I've seen videos of people with MS getting out of their wheelchair for the first time right after having silver fillings removed.
Amalgam fillings are batteries producing tens of microvolts of measurable electricity. The voltage from this metallic mixure can circuit directly to the motor control areas of the brain via the jaw. Over a period of time, MS can result.
I would start with a hair analysis. You're not looking to see if mercury is high, although it may be, you're really searching for a signature that reveals the presence of mercury in body tissues. Unfortunately, to properly interpret the hair analysis, you'll have to get a book on the subject or send it to someone who can interpret it for you.
Here's a link to the book:
Hair Test Interpretation Don't be fooled by looking at a hair test and seeing low mercury. The signatures take a little work to recoginize, but it has to be done properly.
If mercury is the issue, great. You've found the culprit and now it's only a matter of resolving it. If not, you also want to look at aluminum levels.
I'm very sorry to hear about your situation and I hope we can help.