Is this pain around your rib cage
or just above your heart in your upper chest. If so, are you a girl that happens to be big busted? Because that can be very common. I get that a lot actually, and yes, it's usually on one side or the other.
There's also the chance that you might be experiencing an anxiety
attack. You should check to see if you have any other symptoms. Heart disease
comes with many that are usually pretty easy to identify, but sometimes stress
issues can mimic them.