If no cause can be found for chest pain, it is considered to be functional and is seen in cardiac neurosis. Cardiac neurosis can be manifested as chest pain, but examination of electrocardiogram, exercise plate test, and even coronary angiography and coronary CTA can not find positive results, there is functional chest pain, there is no need to worry too much, it is not life-threatening. It is recommended to relax, increase physical exercise appropriately, eat more fresh vegetables and fruits, avoid staying up late, participate in more group activities and increase travel. If there is extremely bad sleep at night, it is recommended to drink a glass of warm milk at night, and if appropriate, you can drink drugs that improve sleep, such as lorazepam. If accompanied by obvious heartburn and anxiety, you can also improve your mood by taking Dextran and sertraline orally as appropriate, and the symptoms of heartburn will gradually disappear after the mood improves.