If the pain feels tender or worsens when you press on the area, a chest injury or pulled muscle may be the cause. Chest pain can have many causes, including angina, heartburn, infections ...

From muscle strains, bacterial and viral infections, and skin rashes, here are 9 possible causes of armpit pain and when to ...

All right this is a very important video about chest pain. I personally have been to the emergency room three separate times ...