Sudden acceleration of heartbeat, panic and dizziness may be due to emotional excitement, arrhythmia, myocardial infarction, hyperthyroidism, hypoglycemia, etc., and need to be treated with medication or surgery for the cause. 1. Emotional excitement: Sympathetic nerve excitement leads to increased cardiac excitability when emotional excitement occurs, so this symptom appears. It is a physiological condition, rest and calm down can be. 2. Arrhythmia: the heart’s excitation and conduction tissue lesions lead to abnormal heart rhythms and a significant increase in heart rate, which leads to this symptom. It can be treated with drugs such as amiodarone and lidocaine, or with electrical cardioversion and radiofrequency ablation. 3. Myocardial infarction: rupture of coronary atherosclerotic plaque leads to acute blockage of coronary artery, myocardial ischemia and infarction, resulting in the above symptoms. Emergency percutaneous coronary intervention or intravenous thrombolysis is needed, and isosorbide nitrate, aspirin, clopidogrel and other drugs should be applied. 4. Hyperthyroidism: increased secretion of thyroid hormone synthesis and hypermetabolism of cardiomyocytes can lead to this symptom. You need to take methimazole, propylthiouracil and other drugs to treat, if necessary, iodine 131 radiation therapy or surgery. 5. Hypoglycemia: Reflex stimulation of sympathetic nerve excitation after the blood sugar level is too low, this symptom appears. It can be treated with oral sugar cubes or intravenous injection of high sugar solution. Attention should be paid to the use of drugs under the guidance of physicians, not blindly use their own drugs.