this is so weird.  I have ms and I have just recently been told that my vit d levels were extremly low by my gyn and primary yearly exams they both called to put me on 50xxx vit d I have been having muscle spasm and tingling and heaviness in arms.  I thought I was relasping,  I hadn't got the prescription filled until I began to read up on some of the effects of being deficient.  I was also between appt with my Nuerologist.  I take b12 injects montly also I am going to see if symptoms cease before following up with my Nuerologis.  and then I just got a flyer saying my Doct is teachng on MS and Vitamin D.  she gives alot of seminars.  I will go and see what is new with this.  B12 and Vit d defiency mimics alot of Ms symptoms.. I wonder if it wasn't for the MRI do I really hav it or just defiencent dianosed in 2001