Hi, my daughter has complained of sharp pain that is under her left breast, in her chest that comes on suddenly, not with activity, and will last from 1-5 minutes and it causes her distress like it is difficult to take in a deep breath. It goes away, but she avoids taking a deep breath for a while after an episode. She had not complained about it in about 4 mo s, but today she has had about 4 episodes. She is 17