Chest tightness and shortness of breath are not necessarily a sign of pneumonia. Many people experience chest tightness and shortness of breath after stress, which may be related to respiratory alkalosis caused by excessive mental stress. If chest tightness and shortness of breath occur repeatedly, it is recommended to improve pulmonary function, lung CT and other related tests to clarify. If the results of pulmonary function suggest changes in pulmonary function, it is also necessary to exclude the presence of bronchial asthma or bronchitis, etc. In elderly people, recurrent chest tightness and shortness of breath need to be ruled out for cardiac insufficiency. It is necessary to improve the cardiac ultrasound examination for clarification and BNP examination if necessary.