Hi MBL, Thanks so much for mentioning magnesium citrate. Magnesium is a common "alternative med" for spasticity and other muscle problems in MS. In the four years since I posted this question, my vitamin D levels have greatly improved. In fact, my most recent blood work showed that my D levels are at 76 now. I've been taking 10,000 IU of D3 daily for almost two years. Apparently my body needs that extra amount to be helpful. I haven't felt the same symptoms mentioned here in a long time. I'm so glad that my doctor tested the D levels way back in 2008. Something that I think all folks with autoimmune diseases and other disorders should do at some point. Vitamin D deficiency is way too common. Lisa