It sure does! That's exactly what I was thinking, but I (like you) have a normally low resting rate, so when I'm active my nervous system seems to overreact at times, and I am sensitive to it. I am...
What's your normal heart rate during regular activity (not resting, not exercising)? I've always found that my "normal" heart rate seemed a bit uncomfortably high, but I don't know if I'm just being...