i am reding everyones posts and I also am vit D and b12 deficiency and i was dignosed with ms only 2 years ago and I am 52 they have been trying since 1998 to dignoise me because I ad symptoms of ms lesions on the brain but they had said my pinl tap was clear o they left it alone finally they did another spinal tap 2 years ago now they say I have ms i take a shot everyday for it was my medical dr that did bloodwork and my vitiamin d was extreamly low she said and started me on vit d it came back up after a few months she then took me off the vit d and bloodwork was just done again last month to find oout that once I was taken off the vit d my levels dropped all the way back down my ister alo has ms and he has problms with vit d and b12 levels but not as bad as mine but i have also had cancer that I had beat but they are now wtching me for breast and ling cancer becaue I have Nodules in both lungs and both breasts so is the problem the ms and like someone else posted sometimes it can be linked to some cancers so only way to really know isnto keep following up with dr appts for everyone