What are the specific types of headaches under the IHS classification?
1. Migraine headaches. These include migraine type headaches with and without an “aura” as well as those that involve the eyes, or those that produced stroke like symptoms. An “aura” includes visual disturbances such as flashing lights, blurred vision, lines. 2. Tension type headache. These usually involve headaches thought to be occurring as a result of contraction of muscles in the head. They may be episodic or chronic. 3. Cluster headaches. Cluster headaches typically occur on one side and are felt often behind an eye. 4. Miscellaneous headaches not associated with a structural lesion. These include cold stimulus headaches, stabbing headaches, benign cough and exertional headaches, and headaches associated with sexual activity. 5. Headache associated with head trauma. These headaches can be acute or chronic. 6. Headache associated with vascular disorders. This can include strokes, intracranial hematomas, ruptured aneurysms, blood clots, inflamed arteries, high blood pressure, headac