You may be working out at the gym or working around the house and all of a sudden it hurts to take a deep breath.  Sometimes pain can wrap around your chest to the front and cause you to experience chest pain. This is most likely due to a displaced rib that begins to pinch a nerve.

This is usually an easy problem to fix. The displaced rib head is adjusted where it connects to your thoracic spine (mid-back), and it goes back in place taking the pressure off the nerve which allows you to feel better.