Ok I am a healthy 22 year old college student and active but for two years my heart has on and off fluttered and for a while it hasn't done it. But for four days it has fluttered, skipped and even goes bang at times (the best I could describe it). Sometimes i cant feel it beat then i can feel it again.I do run when the weather gets nice and when I did last it stopped I believe. I do not get out of breath when I go up the stairs or anything like that. Let me know thanks. And there is no family history of heart problems.