I tried looking for an answer to this on the search but couldn't find anything I didn't try or pertained to me. I've gone to several doctors and all I got was neglect, rudeness, and disbelief of symptoms. I was able to live with severe fatigue, brain fog, and muscular/bone pain but now I've gotten severe chills. The only thing that would help in the past would be methylfolate, methylb12, and copper(I think a mix of zinc and folate/b12 brought about the deficiency). Now I'm stuck with chills that I can't figure out, that just are getting worse and don't respond to anything; wearing several coats and being under several blankets does nothing, hot shower help sometimes but only while in it. Does anyone know what could cause such chills and what I could try? They feel 100x worse than alcohol withdrawal or opiate withdrawal, I could even handle those chills but this is just so severe.