Dizziness, palpitation and panic may be caused by heart disease, endocrine disease and autonomic nervous system dysfunction. 1. Heart disease: when suffering from congenital heart disease such as atrial septal defect, acquired heart disease such as rheumatic endocarditis, atrial fibrillation and other cardiac arrhythmia and other diseases, palpitation and panic disorder can occur, due to the reduction of cardiac ejection can be accompanied by dizziness and other manifestations. 2. Endocrine diseases: such as hypoglycemia, especially in diabetic patients, due to irregular diet, or improper use of hypoglycemic drugs, can lead to hypoglycemia, palpitation, dizziness and other symptoms. 3. Autonomic dysfunction: mostly occurring in female patients, usually without organic lesions, mostly occurring in anxiety, emotional excitement, etc., dizziness, palpitations and other clinical manifestations. The above symptoms should be diagnosed and treated in time to avoid delaying the condition.