Symptoms of hypoglycemia include both autonomic hypoglycemia symptoms such as palpitations and anxiety and cerebral neuronal hypoglycemia symptoms such as behavioral changes and psychomotor abnormalities. 1. Autonomic hypoglycemic symptoms: most of them are caused by sympathetic activation, such as palpitation, tremor, anxiety, dizziness, etc.; a few of them are manifested by vagal excitation, such as hunger, sweating, sensory abnormalities, etc. 2. Neuronal hypoglycemia symptoms: Behavioral changes, psychomotor abnormalities and cognitive impairment can occur, manifested as dizziness, headache, etc. Seizures and coma can also occur when blood glucose concentration is severely reduced. Seizures and coma can also occur when blood glucose concentration is severely lowered. Long-term repeated severe hypoglycemia patients can have permanent neurological damage. Therefore, if you have the above symptoms and suspect this disease, it is recommended to actively seek medical treatment to avoid delaying the condition and serious complications.