what could this be - should I seek help?

Around 3am I started to have chest pain on my left side it's not like a constant pain but my chest feels heavy and than it will feel like a squeezing/tighting pain for a few seconds and than go away, it happens every couple of minutes- I'm used to heart burn and know sometimes heartburn can be simular feeling but I've taken tum's and I don't feel gassy or anything so I was just wondering what could this be, should call my dr?

I had weird chest pains when I was pregnant. They never really figured it out, but if it bothers you enough I'd say go in.