?A head injury
?Injury to the brain
?Fracture of the skull
?Bleeding in or around the brain
?Brain tumor which causes swelling around the brain.
?Infection in the brain or the membranes surrounding the brain
?Stroke, a problem that arises when a blood vessel that supplies blood to the brain bursts or is blocked by a blood clot
?A rupture of the blood vessel with bleeding in or around the brain.
Headaches and other health conditions
Other health conditions that can case or contribute to headache include:
?Alcohol, caffeine or drug abuse, overuse or withdrawal.
?Fibromyalgia, a condition that causes wide spread muscle and soft tissue pain and tenderness.
?Glaucoma, an eye disease that damages the nerves at the back of the eye.
?High blood pressure
?High blood sugar or low blood sugar.
?Infection in the sinus such as sinusitis or an abscess.
?Inflammatory problems such as arthritis, lupus, or temporal
?Kidney disease which causes waste to build up in the blood.
?Low calcium level in the blood or the over activity of the gland that helps release of calcium into the blood.
?Mental heath problems such as depression.
?Problems with pregnancy such as preemclampsia.
?Sleep problems such as insomnia.
?Thyroid problems such as hyperthyroidism or hypothyroidism.
Symptoms that require emergency
Sudden severe pain. The worst you have ever had.
Confusion or change in behavior.
Change in level of consciousness.
Sudden loss of movement in one or all parts of the body.
Sudden vision change such as dimming, burning, double vision or loss of vision.
Sudden persistent difficulty speaking, or understanding speech.
Severe headache that comes during extraneous physical or sexual activity,