Blood Pressure Out Of Control in Dysautonomia Discussion Posted August 14, 2009 · Report reply My blood pressure has been getting as high as 190 over 164 and as low as 86 over 50 over the course of a few hours it goes real high then real low. I'm on a beta blocker shouldnt it be preventing this from happpening? And am I at risk with numbers like that? Also ive been expeirencing some of the worst palpations Ive ever had and they are occuring at night time when im laying in bed. They seem to be different then my usual palpations my heart actually stops beating for a second or two and then it starts jumping out of my chest and last for up to 5 minutes. Its scary it feels like its going to burst or tear or something. If I sit up it goes away and starts again when I lay back down. I had a renin plasma test done recently and it indicating renovascular hypertension but Im trying not to get worked up over it because it was just a simple blood test and just an indication. Im seeing my cardio in a few weeks to have it looked into. The scary thing is im so used to having severe chest pain and palpations that if I actually would have a heart attack I would probably just ignore it and think its relating to pots. How do you tell the difference between the symptoms of pots and an emergency situation? And how do I get my blood pressure to stay at least somewhat in a reasonable range?