I get that sometimes. Every now and then I have my hand oh my chest to check, and I wont feel my heart beat. I know it's nothing to worry about because I don't think I would be standing there. On the other hands pains in the chest are really normal with me, and yes I am an unhealthy person. I'm only 10stone. and I run out of breath when I walk the stairs, so all's I do know is cut down on my junk food fat/sugar.
I don't think you NEED to go the doctors, but it wouldn't hurt.