1. When you are tired or nervous, you will have symptoms of tightness in the posterior sternum and precordial area, which lasts for a short time and can be relieved by yourself after rest.

2. There are symptoms of chest tightness, palpitation and shortness of breath during physical activity, which will generally be relieved during rest.

3. There are symptoms such as headache, toothache and leg pain during exercise.

4. Have chest pain and palpitation symptoms when you are full, have a cold or watch a thrilling movie.

5. Symptoms of palpitation, chest tightness, shortness of breath or chest pain occur during sexual life or forced defecation.

6. There is a feeling of chest tightness and suffocation when the pillow is low at night. When you sleep and lie down during the day, you will suddenly have symptoms of chest pain, palpitations and dyspnea. At this time, sit up or stand up immediately, and the symptoms will be alleviated.

7. Recurrent irregular pulse and tachycardia or bradycardia symptoms.