I went to the emergency room for an unrelated reason a few months ago and they took my temperature. It was low--96 point something. I am finding a lot of information about what POTS is and what the symptoms of POTS are, but not on the reasons we get it and why it can come and go. Through a post here, I have read that XMRV damages the part of the brain in charge of Autonomic Nerve Responses. However, I do not remember an explanation for why it comes and goes and why we have low body temperature. Does anyone know? Has anyone found a good naturopathic remedy for POTS--something a person could by online or anything else that works well to treat it.