A headache is called<unk> " if it is severe in character and reaches maximum severity within seconds to minutes of onset. In many cases, there are no other abnormalities, but the various causes of<unk> s may lead to a number of neurological symptoms.
Thunderclap headache
External compression headache
Cold-stimulus headache
Ictal headache
Tension headache
Lupus headache
Vascular headache
Cluster headache