It is a normal physiological phenomenon to have a headache when you are sleepy. When the body is sleepy, it is the time when the brain cells need to rest, the brain cells are in a state of lack of oxygen, and the symptoms of headache will appear, so it is unnecessary to care, and it is enough to sleep when the headache occurs. Observe whether the patient’s blood lipids, blood sugar and blood viscosity are elevated, because these aspects can affect the hemodynamics of blood flow, slowing down the patient’s blood flow and causing the phenomenon of insufficient blood supply to the brain. If these symptoms are improved, the headache may be relieved.