well ive been having this for years but it happends maybe once every month or so my hearts beats like really fast that i can just feel it with out putting my hand over my heart! its feels like my heart want to jump out of my chest or something! its weird but does this happend to anybody else out there? is it just normal or should i be worried? i dont drink coffee or smoke or drink alchohol or anything like that, im actually a healthy 23 yr old!