To identify if you have costochondritis--an inflammation of the cartilage that connects your ribs or the inflammation of a rib itself--it can be helpful to analyze your chest pain. Costochondritis can cause chest pain that some people mistake for a heart attack or even acid reflux due to its location. Think about where it hurts--whether you feel discomfort below your breastbone or in the bone itself. Is your pain constant and persistent, or does it come and go in varying levels of intensity? Costochondritis can present itself in all of these ways. Jot down your symptoms so they're easier to communicate to your physician, rather than just going on memory. If your chest pain is severe and unrelenting, go to the closest emergency room to rule out a heart attack, just to be safe.