Hi, Im 21, i eat badly i think, don't excersise much at all but i'm not overweight- my resting heartrate is around 85+ beats a minute. if i walk somewhere it can easily reach around 100, but i've never noticed it exceed that by very much. i have a little anxiety, but it seems that it's a result of the worry associated with my rapid heartbeat. i smoke, but am cutting down. i'm worried because it can sometimes pound hard for no apparent reason, and i often get a headache, pain in my sinuses or behind my eye. should i be worried?