occasionally I breathe in, and I get a sharp pain in my chest and I can't move or breathe out fast until it goes away. I feel like I have to hold my chest, and I go stiff. I'mnot sure if that is what heartburn is. It usually happens near my rib.
Do you mean something like a side stitch, where you get that pain after you run? Well, I usually get those pains lower. These ones are higher, and not always near the rib. Sometimes it's in the middle of my chest. Can't explain it.