Not sleeping well headache, may be a normal physiological phenomenon, may also be migraine, hypertension and other causes. 1. Normal physiological phenomenon: did not sleep well, often lead to insufficient rest of the brain, a long time in a state of fatigue, easy to induce headaches, may also be accompanied by mental fatigue, weakness and other manifestations. 2. Migraine: if there is a history of migraine, in the absence of a good night’s sleep, it is easy to trigger a migraine attack, which will cause headaches, mainly manifested as one side of the head or bilateral throbbing pain, which may also be accompanied by nausea, dizziness and other manifestations. 3. Hypertension: If there is a history of hypertension, did not sleep well, especially for a long time, easy to cause blood pressure fluctuations, resulting in cerebral blood vessels to enhance the internal pressure, may cause headaches, mainly due to the pressure within the blood vessels constantly on the meninges to form the stimulation caused by. Not sleep well headache, may also be related to other factors, if the symptoms are serious, or accompanied by other discomfort, should seek medical attention as soon as possible.