This patient support community is for discussions relating to Dysautonomia (Autonomic Dysfunction) including: Postural orthostatic tachycardia syndrome (POTS), neurocardiogenic syncope, mitral valve prolapse dysautonomia, pure autonomic failure, autonomic instability and others.
Sorry, bad joke. That's a great question. I wonder the same myself. Is it a higher level of catecholamines upon standing (or in general) perhaps? I'm not sure.
Keep in mind (I know, I've beaten this poor horse to death and beyond), though, that the entire concept of the distinction of dividing pots into these two categories has still not gained universal acceptance. The flow model is a different way of looking at classifying different cases of pots. NET deficiency has accounted for a small number of patients. As POTS is researched further, these various explanations and models will be refined and possibly combined.
I will be glad to share with anyone my journey and all the things I did to correct POTS...just email me.....