I am experiencing chest pain or discomfort (quality: feels sharp or stabbing, sensation of tearing pain) (worsened by: after sudden movements, ben...

Time to see doctor: Chest pain is a sign that she should talk with her doctor; or go to an E.R. if pain is moderate or worse. In young adults, chest pain is less likely a heart attack. She should not drive (get a ride, or go by ambulance). If it turns out not to be costochondritis, myocarditis, anxiety attack symptoms, or heart attack, the ER will also have checked for problems like a collapsed lung or a pneumonia.