feels like my hearts beating wierd, wierd feeling in chest !!!SCARED.. is this normal?!?!? im a teen age 15. i have atrial fibrilation a type of arythmia that happends to me sometimes.. im in the cardiology clinic. it doesnt feel like my heart is out of control fast right now. but my chest feels a little wierd my hearts not going fast.. but its banging wierdish, and im really panicing and scared. will this just go away after a while? i mean like.. its not dangerous or anything right?