I have a heaviness behind my sternum. I have been using my asthma inhaler daily for almost two weeks, which previously was only rarely. I have many options for the problem. I lost my father 26 days ago, so stressful and sad, I joined a gym 5 days ago, so maybe just sore somehow. I am allergic to the world and its spring right now. I don t want to waste a trip to the ED if it is just grief, allergies or sore muscles. What should I do?