Help! I'm really scared!?

So, I had a really fatty lunch today, which is unusual (Chick fil A sandwich, chicken poppers, a gatorade and a cookie). And now, over 6 hours later, I have these horrible chest pains. It feels like a burning or stabbing right on my bone. What is it? Should I go to the doctor ASAP?! I'm 16, btw, if that is relevant.