Perhaps I am overworrying, but after getting a fitbit to monitor heart rate, I've been subject to a whole new set of numbers to obsess over. I find that my resting heart rate is often recorded in the low sixties or high fifties...which I gather is a positive thing. What I'm worried about is that light walking (through a grocery store, standing up after a movie, walking through the house or doing errands) my heart rate can increase to just above 100-110. Once, this weekend, it elevated to 120 for about twenty mins randomly while I was sitting before settling down.
That aside, I am perhaps paranoid and worried that the fact my heart rate varies so radically from a resting rate to suddenly leaping into the high nineties or low 100's or 110's while light walking might mean something is drastically wrong with me or my heart. I've had an EKG within the last two months and a heart rate monitor during an exercise test...both times the doctor did not warn me of anything amiss.
Should I be as worried as I am?