Appear body shaking limbs weakness sleepy, consider a neurasthenia, hypoglycemia, excessive fatigue, infection and other related. 1. Neurasthenia: long-term tension, high stress produced by the brain and body function weakness as the main characteristic disease, can appear body shaking, easy to fatigue, limb weakness, fear of noise, insomnia and other symptoms, some patients may appear sleepy symptoms. 2. Hypoglycemia: The cause of hypoglycemia is related to insufficient sugar intake, insufficient sugar production, excessive sugar consumption, excessive sugar conversion and other factors. When hypoglycemia occurs, body shaking, weakness of limbs and drowsiness may appear. 3. Excessive fatigue: When the body is overworked, symptoms such as body shaking, weakness of limbs and drowsiness may appear, which can be relieved after rest. 4. Infection: when infection causes fever, headache, weakness of limbs and drowsiness may occur. There are many reasons for the symptoms of shaking, weakness and drowsiness, so it is recommended to consult a doctor in time to clarify the cause of the disease and then target treatment.