Feeling breathless with chest tightness, clinically specific reasons are as follows: 1, the presence of pulmonary disorders, such as lung infection, in this case the patient is advised to do lung imaging, such as chest X-ray, lung CT, if it is determined that there is a case of lung infection, the next step is to use antibiotic treatment for the infection; 2, patients with heart disease, such as patients with coronary heart disease, can also appear chest tightness performance, it is recommended that this part Patients should have an electrocardiogram or coronary angiography. If a patient with coronary artery disease is identified, a cardiologist will look at the patient and treat him/her for coronary artery disease. 3. Patients with reflux gastroesophagitis, due to acid reflux stimulating the posterior wall of the stomach or even the posterior wall of the esophagus, will also have chest tightness and a feeling of pressure in the anterior thoracic area, so the patient is advised to do a gastroscopy to identify this aspect of the problem and treat it with proton pump inhibitors and gastrointestinal motility drugs.