First of all, I would like to ask you three questions: 1. Do you know which parts of the pain may be related to heart disease? The main manifestation of angina pectoris or heart attack is paroxysmal anterior chest crushing pain, which may also radiate to the teeth, jaw, neck, left shoulder, left upper arm and left hand ring finger and little finger. When your chest pain is accompanied by pain in the above areas, it should be taken seriously. 2.Is chest pain a heart disease? Not necessarily, heart disease is often accompanied by chest pain, but when you have chest pain, there may be chest wall lesions, pneumothorax or mediastinal esophageal lesions, so chest pain is not necessarily heart disease. 3.What should I do if I feel angina pectoris? First, stop the activity, stay in a semi-sitting position, put nitroglycerin 0.5mg or 1 tablet of cardiac pain under the tongue, wait until the angina symptoms are relieved, and then go to the hospital for treatment. Here are 14 signs of heart disease: (1) palpitations, fatigue, shortness of breath and other discomfort during physical activity, or a feeling of difficulty in breathing. (2) Sudden onset of retrosternal pain or chest tightness and pressure during exertion or stress. (3) Pain in the left chest accompanied by sweating, or pain radiating to the shoulder, arm and neck. (4) Suddenly waking up during sleep or nightmares, feeling palpitations, chest tightness, and breathlessness, and needing to sit up for a while to get better. (5) Difficulty in breathing, chest tightness or chest pain during sexual intercourse. (6) Palpitations, chest tightness or chest pain when having a full meal, being cold, smoking, or watching a tense movie or TV. (7) Easily feel chest tightness and breathlessness in a crowded and confined public place. (8) When going upstairs, palpitations and shortness of breath occur more easily than before or than others. (9) Sudden palpitations, dizziness, blackness in front of the eyes, and a feeling of falling down. (10) Feeling palpitations and fatigue even when doing light work after catching a cold, or feeling shortness of breath when walking slightly fast. (11) Sudden chest discomfort and fainting on the floor, or a feeling of imminent “death”. (12) Difficulty in breathing when sleeping at night with a low pillow, and needing a higher pillow to fall asleep. (13) Hypertrophy and deformation of the ends of the fingers or toes. (14) Abnormal sound of heartbeat at rest or tremor when touching the heart area on the front chest wall with the palm of the hand. Do you have any of the above 14 precursors of heart disease? The general public will have more or less appeared more than once or several phenomena, but not necessarily. If the situation is serious, you must go to do a heart examination, so that immediate detection, immediate treatment.