Cardiac Functional Disorder can cause subjective pain symptoms such as palpitations, chest pain, and headache, and it is recommended to visit a hospital for treatment. Cardiac Functional Disorder is fully known as cardiac neurosis, and the symptoms include palpitations, headache, dizziness, chest pain, chest tightness, fatigue, dyspnea, insomnia, memory loss, and discomfort in the precordial area. It is mainly due to psychogenic factors, such as nervousness, anxiety, etc., and nerve dysfunction caused by strong stimulation or excitement, which in turn leads to abnormal cardiovascular function. It is recommended that patients can take diazepam, eszopiclone and other drugs to relieve pain, but the most important thing is to relieve mental stress, and psychotherapy is needed if necessary. Diagnosis of cardiac insufficiency needs to exclude hypertensive heart disease, coronary heart disease and other cardiac lesions, should be diagnosed under professional guidance, do not take drugs indiscriminately.