Thanks for your reply, Mrs. D. Your insight is invaluable. Is there any data showing these MTHFR variants aid in the cause of neuropathy?

Also I'm at a crossroads with my current neurologist at Washington University in St. Louis. My third punch skin biopsy since 2011 came back in the normal range. I have both sensory and autonomic symptoms occurring and when I asked him if I had SFN, he stated that his best guess based on my information was yes. My blood work has all come back normal and when I asked him if there was another neurologist that I could talk with about my other symptoms, he recommended MAYO. My question is, "Is MAYO the gold standard of places to go".

Tony