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lung pain in back pneumonia :: Article Creator What's Causing My Chest Pain? Chest pain is not something to ignore. But you should know that it has many possible causes. In many cases, it's related to the heart. But chest pain may also be caused by problems in your lungs, esophagus, muscles, ribs, or nerves, for example. Some of these conditions are serious and life threatening. Others are not. If you have unexplained chest pain, the only way to confirm its cause is to have a doctor evaluate you. You may feel chest pain anywhere from your neck to your upper abdomen. Depending on its cause, chest pain may be: Sharp Dull Burning Aching Stabbing A tight, squeezing, or crushing sensation Here are some of the more common causes of chest pain. These heart problems are common causes: Coronary artery disease, or CAD. This is a blockage in the heart's blood vessels that reduces blood flow and oxygen to the heart muscle. Th...