Symptoms of heart discomfort and chest tightness: First of all, patients with coronary heart disease and angina pectoris are considered to have episodes of angina pectoris pain, chest tightness, shortness of breath, panic, and weakness. It is common in elderly patients with previous history of hypertension, diabetes, hyperlipidemia or smoking. Secondly, patients with cardiovascular neurosis, mostly young patients, have no previous diagnosis of cardiovascular disease, and have symptoms such as chest tightness, shortness of breath, precordial pain, dizziness, sweating, etc. Every time symptoms appear, the subjective symptoms are obvious, and some patients have symptoms of irritability and depression, which are not obvious after rest or oral medication.