I'm glad you found this forum, too.
Conventional doctors consider MS to be mysterious and are at a loss to do a whole lot about it. So, one needs to look beyond their paradigm which is largely limited to prescribing drugs in an attempt to deal with sickness.
Conventional doctors, as wrong as it may seem, know very little of the crucial role of nutrition in health. Please see: Status of nutrition education in medical schools. http://www.thisisms.com/forum/general-discussion-f1/topic24442.html
If I was in your situation now, right away I would pick up the book Could It Be B12?: An Epidemic of Misdiagnoses http://www.amazon.com/Could-It-Be-B12-Misdiagnoses/dp/1884995691
. Your doctor will most likely give you a serum B12 test, but that test is, all too often, misleading as to how a person's health is concerned.
Our health is in our hands. We cannot afford to leave it to others. This is even more significant considering the poor track record of the medical community in dealing with MS.
I wish you the best