If you feel dizzy and panicky while sleeping, you should first measure your blood pressure. Patients may also suffer from heart disease, such as arrhythmia, because of insufficient blood supply to the brain caused by insufficient blood supply to the heart, and then they should have an electrocardiogram, cardiac ultrasound or 24-hour ambulatory ECG monitoring to clarify. If the patient has previous diabetes mellitus and is taking glucose-lowering medication, it is important to consider whether it is a hypoglycemic attack. It is recommended to monitor fingertip blood glucose and to supplement with foods containing more sugar to relieve symptoms. In addition, patients also need to do some cerebrovascular examinations, such as transcranial Doppler, magnetic resonance imaging of the head or head CT, to observe whether the patient is suffering from posterior circulation ischemia or cerebral infarction, which causes dizziness and panic at night.