Hello, I hope you are not having asthma or any other lung disease. You must consult an ENT specialist and get examined. You must also take care of reflux of food or acidity . Whether you feel it or not as many people even can not feel the acidic reflux but they have it. and it is more in night. If you have it during day time also then first treat it . Take---- Antacid tablet Syp. antacid gel 2 tsf two times a day half an hour before meals multivitamin twice daily Keep head end of bed elevated. Avoid alcohol, Smoking Do brisk walking daily Go for walk after dinner Avoid spicy food Avoid late night coffee follow up after 7 days.