Many people with chest pain fear that they are having a heart attack. However, there are many other possible causes of chest ache. Some causes can be mildly inconvenient, while others can be life-threatening. Any organ or tissue in your chest can be the source of chest pain, including your heart, lungs, esophagus, muscles, ribs, tendons or even nerves. Let us find out more information on chest ache and its causes.