Hi there, I seem to have all the typical symptoms of MS very constant for the last month and getting worse, numbness, weakness, burning pins all over, eyes bother me: flashes and pain but no double vision, now it is hard to swallow and my saliva sometimes leaks out. Vertigo and nausea. I had been told that my B12 was low (range from 145-168), has been for 10 years. I was taking supplements and injections for months recently and my B12 serum was not changing in blood tests. They did a homocysteine test and it was normal. Conclusion was that since this was normal, I don t have a true deficiency or anemia. Dr. won t order any more injections and says I am just one of those people for which the serum test does not work. I have had these problems and muscle spasms, fatigue for many years and was diagnosed with fibromyalgia but now I am sure there is more going on. I am actually leaning more towards the possibility of MS because of these symptoms and strange episodes of uncontrollable crying for no reason. I am 42 y/o female. My question is whether I can be having severe B12 def. symptoms if my homocysteine was just fine? Should I pursue this B12 thing? Thanks so much for your help. Vickie