OP: I question our doctors SO MUCH. Your B12 TO ME, appears to low. Don't know where your D level is but that could be low too. I much older than you but find so much HELP from taking Grape Seed Extract for going on 23 yrs now...for starters works on CIRCULATION. I can't tell anyone want to do, but Grape Seed Ex does so much for health issues. You mention MS, I lost my sister to it, and wanted her so much to get on Grape Seed Ex for years and she didn't. There is a lot of info on Grape Seed Ex and MS.

Hope you find solutions. BTW:: There are many other B vitamins that help us too and I take a lot of them separately...