I have been researching POTS and came across some information. Apparently, some POTS is neuropathic - caused by peripheral denervation and others are hyperodrenergic POTS - caused by overactivity of the sympathetic nervous system. I think my cardiologist was thinking mine is the hyperodrenergic one. However, I'm wondering if it could be the neuropathic one since I do have peripheral neuropathy.