Thanks for your question on Health Care Magic. I can understand your concern. In my opinion, you are mostly having stress and anxiety related symptoms. But better to rule out lung pathology like lung infection and bronchitis because these can also cause similar symptoms. So get done chest x ray and PFT (Pulmonary Function Test). If both these are normal then no need to worry for lung diseases. Stress and anxiety can cause similar sensations. So avoid stress and tension. Be relax and calm. Consult psychiatrist and get done counseling sessions. Try to identify stressor in your life and start working on its solution. You may need anxiolytic drugs too. Don t worry, you will be alright. Hope I have solved your query. Wish you good health. Thanks.