Chronic Headache

True (primary) chronic daily headaches don't have an identifiable underlying cause. Conditions that might cause nonprimary chronic daily headaches include: Inflammation or other problems with the blood vessels in and around the brain, including stroke. Infections, such as meningitis.

6.1 Symptoms:

chronic daily headaches occur 15 days or more a month, for longer than three months. True (primary) chronic daily headaches aren't caused by another condition. There are short-lasting and long-lasting chronic daily headaches. Long-lasting

6.2 Headaches last more than four hours. They include:

Chronic migraine Chronic tension-type headache New daily persistent headache Hemicrania continua Chronic migraine This type typically occurs in people with a history of episodic migraines.