postural orthostatic tachycardia syndrome
"I'm baffled as to why bupropion is helpful with orthostasis, but for me, it has been. I can confirm that now because my doctor took me off it in case it was contributing to hypertensive spikes (--I have hyperadrenergic POTS). I don't know about that, and especially because I'm on a new beta blocker too, but I'm back to that slightly sweaty, slight swaying feeling when I stand, and my standing pulse pressure (difference between systolic and diastolic figures) narrows more now with standing."