The last month or two occasionally I have had some weird things going on. Sometimes I will be relaxing and it feels like my heart flutters for a few seconds and then i m fine. It use to happen very rarely, but the last few months it has been happening more and more. And then last night my heart has just been racing and it feels like I can t breath . And today it s even worse my chest hurts and I can feel my heart skip all around its been going on for hours. my neck feels like its swollen or something. I don t know if i m on the verge of a heart attack or what. im only 19 and have never had any problems with my heart before. Does this sound serious. It feels like im going to have a heart attack any second its very scary.