Well I smoke and I have been like 2 years. I'm just 16 years old. I need help beacause the other night it was like a pain in my chest, it felt like my heart was rolling around in my chest and it felt weird, kinda like a pain but more weird than anything and it scared me. I raised up and got a deep breathe and it went away tho. What is this? A heart attack? Heart disease symptoms? Help, it scared me >_<