This is a newbie question. My resting heart rate is 90 and immediately upon standing, 100. In the past, it has been 100 resting. I have taken mepropanol and liked that it kept me from feeling my heart pounding. I also think that eliminating foods I'm sensitive/allergic to has helped. I tend towards high blood pressure. Do I have POTS or not? One doc says yes, another no. Though the "no" doc was wrong about a few things. Major symptom that I assume is POTS-- I can't sit up at an event (dinner out, a concert) for more than 20 minutes without fidgeting, then having to seriously concentrate on taking breaths to get enough oxygen. I concentrate on breathing, get very uncomfortable and spacey. I have to get up and move. I'm dizzy upon rising. Then moving around or standing helps. Oy. This IS POTS, yes? How does one decide what med to take? And, what kind of medical professional is best for treating this, cardiologist? I live in the Pacific Northwest. Thank you!