Wake up in the morning, what's wrong with chest tightness?

Chest tightness in the morning may be caused by allergic asthma, may also be caused by respiratory tract infection, do not rule out the possibility of heart disease, such as coronary heart disease, myocardial ischemia, etc.; can drink water properly, ensure throat moist, and go to the respiratory medicine department of regular hospital to do immunoglobulin, lung function, allergen examination.