A: How are you doing today? B: I've been having trouble breathing lately. A: Have you had any type of cold lately? B: No, I haven't had a cold. I just have a heavy feeling in my chest when I try to breathe. A: Do you have any allergies that you know of? B: No, I don't have any allergies that I know of. A: Does this happen all the time or mostly when you are active? B: It happens a lot when I work out. A: I am going to send you to a pulmonary specialist who can run tests on you for asthma. B: Thank you for your help, doctor.