I have Dysautonomia, but I attribute a lot of my muscle issues to a very low
vitamin D level. I am having trouble absorbing
vitamin D and have gone as far as taking 50,000mg per day for a month, then 50,000mg once a week for two months after that with no avail. (I did this 3 separate times!) My endocronologist says my dysautonomia is to blame for the malabsortion.