Heart Pains Ive Been Having Weird Pains In My Heart What Could It Be?

Ive been having weird pains in my heart what could it be? - heart pains

I noticed that in the last 4 or 5 years I have really bad chest pains. Often when I laugh too loud or be highlighted. When I feel my pulse, my heart beats faster ...? I went to the doctor when I was younger, but have rejected the doctor only. i dont get it at regular intervals, maybe every 2 weeks or less. I do not know what to do or be?