Disclaimer: I'm not telling you to change your managment plan for POTS. this is just me saying that(and also that I've heard form others) there is a possible different form of POTS or Dysautonomia out there where this is the management for it.
heres the links for you guys:
What is dysautonomia?
http://www.dysautonomiainternational....
What is POTS?
http://www.dysautonomiainternational....
my links:
facebook:   / notyouraveragezebra  
Instagram:   / jomuscella_13