Hypoglycemia has the following symptoms:
1. Sympathetic nerve overexcitation When hypoglycemia occurs, adrenaline, norepinephrine and some peptide substances are released from sympathetic nerve and adrenal medulla, which can cause sweating, hunger, abnormal sensation, salivation, trembling, palpitation, nervousness, anxiety, weakness, pallor, rapid heart rate and cold limbs.
Second, brain dysfunction manifestations Brain dysfunction is a series of manifestations of dysfunction caused by the lack of sufficient glucose supply in the brain. The initial manifestations are lack of concentration, slow thinking and language, dizziness, drowsiness, unclear vision, instability, and possible hallucinations, restlessness, weird behavior and other mental symptoms. In severe cases, there may be disturbances, even compulsory convulsions, coma and other symptoms. If hypoglycemia is not corrected effectively, irreversible injury and even death can often occur.
Third, the difference of hypoglycemia The symptoms of hypoglycemia vary greatly among individuals, but they can be basically similar in the same individual. Its severity depends on factors such as the degree of hypoglycemia, the speed and duration of hypoglycemia, the body's responsiveness to hypoglycemia, and age. Most people with chronic hypoglycemia have certain adaptability, and their clinical manifestations are not significant, mainly with central nervous system dysfunction; However, diabetic patients may suffer from the rapid decrease of blood sugar, and even if the blood sugar concentration is higher than 2.8mmol/L, obvious symptoms of sympathetic nerve excitation may occur.
Fourth, I didn't notice hypoglycemia. Although some hypoglycemia patients have low blood sugar but no obvious symptoms, they are often not easy to detect, and then they can easily develop into severe hypoglycemia, and suddenly appear in a coma or convulsion, which is called undetected hypoglycemia.