Early symptoms of different types of heart disease are different. Early heart attack can be seen in the anterior region of the heart discomfort, fatigue and other symptoms; early coronary heart disease can be seen in palpitations, chest tightness and other symptoms; arrhythmia part of the heart can be seen in panic, palpitations, fatigue and other symptoms. 1. Myocardial infarction. The vast majority of myocardial infarction in the first few days before the onset of symptoms will appear in the precursor period, such as fatigue, chest tightness, palpitations, emotional irritability, pain in the precordial area and other symptoms. 2. Coronary atherosclerotic heart disease. Coronary heart disease early clinical symptoms are not typical, part of the early onset of a variety of symptoms, such as palpitations, chest tightness, precordial pain and other manifestations. 3. Arrhythmia. Arrhythmia is usually mild in the early stage, mild arrhythmia may not have symptoms, and some patients may have panic attacks, palpitations, and fatigue. For tachyarrhythmias there can also be dizziness, chest pain, breathlessness, anxiety and other symptoms. When symptoms of cardiac discomfort occur, early medical treatment should be sought to clarify the cause of the disease in a timely manner.