The gas that is generated in the stomach and the intestine, moves upward and presses against the wall of the
chest. This leads to difficulty
in breathing and tightening of
chest wall, which eventually results
in the pain in chest. If the symptoms of heart attack such as palpitations, rapid heart rate, sweating, pale skin are not experienced with a left chest pain, it is often an indication that the person is suffering from acidity or gas or heartburn.