Causes of nausea, chest tightness, shortness of breath, dyspnea, and panic are considered as follows:1. Consider coronary heart disease, acute myocardial infarction, patients with acute myocardial infarction will manifest chest tightness, chest pain, and panic, and if there are complications of cardiac insufficiency, shortness of breath, and dyspnea will occur, and the diagnosis of this condition should be confirmed by electrocardiogram and cardiac enzymes troponin tests.2. Arrhythmias, such as paroxysmal The heart arrhythmia, such as paroxysmal ventricular tachycardia, rapid atrial fibrillation, will cause the patient to develop cardiac insufficiency, the patient will manifest panic, chest tightness, shortness of breath, and its diagnosis also depends on the electrocardiogram to confirm the diagnosis. 3, cardiac insufficiency, patients with heart failure will manifest varying degrees of dyspnea, which will be accompanied by chest tightness, nausea, and symptoms of panic, you can do cardiac ultrasound to clarify the diagnosis.