Middle chest pain while jumping or exercise?

Check on chest pain: Exertional chest pain is nothing to ignore! The potential origin of your symptoms includes: heart, lungs, mediastinum, esophagus, musculoskeletal, pericardium (sac around the heart), pleuritis, bronchiitis, or referred pain from a remote site. Your doctor will be concerned about accompanying fever, blood with coughing, vomiting, shortness or breath, difficulty reclining, tenderness. Get checked.

Chest Pain -See Doc?: When to see a doctor? How do you know when you need medical help for chest pain? It's not always easy to tell. Helpful simple quiz: http://edition.cnn.com/HEALTH/help.at.home/chest.pain/content.html