The chest contains many organs, like the heart, lungs with its pleural covering, esophagus, muscles, ribs, tendons, and nerves. They all can be the source of the pain felt in the chest. The pain you expressed may occur from gastric disturbances and muscular troubles also. Other symptoms and direct clinical examination helps to idenyify the trouble. I suggest you to have your chest x ray PA view taken once. However consider consulting nearby doctor.  They can guide you further after examination.