question: I am 39 years and quit smoking 7 years ago. I never coughed, coughed anything up, etc after quitting.  I have always had chronic sinus issues and been on lots of antibiotics and take mucus relief fairly often.  I get shortness of breath out of nowhere.  I have inhalers, and albuterol for nebulizer, prednisone, etc to help, but it takes a while to get back to breathing normal.  I excercise regularly and occasionally get bad headaches from shortness of breath.  Been to doctors and they just tell me my lungs are clear and give me an antibiotic and/or an inhaler.