Yogini and Katybug, Thank you both for taking the time to get back to me! It really does just feel pounding doing almost nothing, rolling over in bed or sitting at my desk. I'm really not freaking about it, it is just nice (sadly) to hear other people say that you feel this way too even if your pulse isn't through the roof.
Interesting that a pounding heart isn't always the same as a fast heart - I am learning so much. When you talk about pulse pressure being narrow, roughly what constitutes narrow? I guess if "normal" BP is 120/80 then a normal differential would be 40. Wondering roughly how small that number needs to get to be what you refer to as "narrow"? Realizing all of us are different, just roughly.
It is really extremely comforting to be able to talk with someone who understands. Thank you very much.