Thanks for your question on Healthcare Magic. I can understand your concern. In teenagers, most common cause for such pain is musculoskeletal pain. But better to rule out cardiac pain first. So get done ecg and 2d echo. If both these are normal then no need to worry for heart diseases. Tell her to follow these steps for better symptomatic relief in musculoskeletal pain. 1. Avoid heavyweight lifting and strenuous exercise. 2. Avoid movements causing pain. Avoid sudden jerky movements of chest. 3. Apply warm water pad on affected areas of chest. 4. Take painkiller like ibuprofen or acetaminophen. Don t worry, she will be alright with all these. Hope I have solved your query. I will be happy to help you further. Wishing good health to your daughter. Thanks.