Chest pain and sometimes stuffy and dizziness, common in coronary heart disease triggered by adverse symptoms, may also be myocardial infarction, pleurisy and other diseases caused by discomfort. 1. Coronary heart disease: Coronary heart disease can lead to chest pain, chest tightness, dizziness and other adverse symptoms, patients usually appear arrhythmia, rapid heartbeat, emotional fluctuations or overexertion will be more pronounced, and may cause coma or shock in severe cases. 2. Myocardial infarction: when myocardial infarction occurs, the symptom of chest pain will be more obvious, and may cause nausea, vomiting and other adverse symptoms, some patients will also have difficulty in breathing and other symptoms. 3. Pleurisy: pleurisy may also cause this kind of discomfort, the patient may have fever, and then cause dizziness, headache, fatigue and other symptoms, suffering from this kind of disease will also lead to dyspnea, coughing, coughing up sputum and other symptoms, and even the situation of hemoptysis. Chest pain and sometimes stuffy and dizziness can also be seen in other diseases, it is recommended that patients timely regular hospital consultation, so as not to delay the condition.