What's wrong with chest tightness and shortness of breath lately?

There are many reasons for frequent chest tightness and shortness of breath. Respiratory diseases such as pneumonia, bronchitis, asthma, etc. may cause chest tightness and shortness of breath; cardiovascular diseases such as coronary heart disease, myocardial insufficiency, myocardial infarction, etc. may also cause chest tightness and shortness of breath symptoms. It is recommended that you go to the hospital for detailed examinations such as ECG and CT, and treat the cause after a clear diagnosis.