Chest pain can be a key warning sign of heart trouble, but millions of people who suffer chest pain are actually suffering from something else.

AdBelow, these providers will discuss three broad categories of reasons for chest pain. If you feel chest pain, pressure, or tightness, you should seek medical attention. Heart-related chest painThere are multiple heart conditions and events that can cause chest pain. Aortic dissection is an emergency that causes sudden, severe pain in your chest, neck, throat or jaw. Respiratory-related chest painSince your lungs are in your chest, it makes sense that they could be a cause of chest pain.