When a headache is present for multiple days at a time, this is known as a type of chronic daily headache. These headaches are so extreme at times that they wear a person down. Knowing what the cause of a chronic headache is will enable a person to gain relief from this disabling condition. Chronic headaches affect 3 to 5 percent of adults and fall into one of four categories. These types are; chronic migraine, chronic tension-type headache, hemicrania continua, and new daily persistent headache. All these headaches have specific symptoms and causes, as well, as common risk factors.
Signs and Symptoms- Chronic migraines affect just one side of the head. The pain is a throbbing sensation, which triggers nausea, vomiting, and sensitivity to bright lights and sound. Headaches known as chronic tension-type headaches affect both sides of the head. These can tend to cause nausea, as well as sensitivity to noise and lights. One type of headache that is extremely draining is a hemicrania continua.