Please choose the correct ending to complete the given sentence: Health: [header] How to diagnose pericarditis [title] Notice chest pain. [step] Chest pain is not something you ever want to ignore, so if you have chest pain, you should go to the doctor or emergency room, just in case. Try to take note of where, exactly, you're having chest pain, as well as if certain actions make it feel worse, such as coughing or lying down.

Ending1: These are all normal occurrences for anyone, but chest pain may arise if : [substeps] You have pain at any time in your life. The right lifestyle might have caused you to experience chest pain. Ending2: That will help you identify what is causing your chest pain. [title] Be aware that your chest pain is not a symptom of pericarditis. Ending3: [substeps] Chest pain associated with pericarditis is generally sharp and quick, not drawn out. Coughing or lying down will often make the pain feel worse. Ending4: If the feeling lasts more than a few moments, it may be a sign of bad blood in the lungs. If it persists, go see your doctor right away.

Answer format: ending1/ending2/ending3/ending4