Migraine headache—diagnostic requirements
At least two of the following features:
	Unilateral location
	Throbbing character
	Worsening pain with routine activity
	Moderate to severe intensity
At least one of the following features:
	Nausea and/or vomiting
	Photophobia and phonophobia
Tension headache—diagnostic requirements
At least two of the following features:
	Pressing, tightening, or nonpulsatile character
	Mild to moderate intensity
	Bilateral location
	No aggravation with routine activity
Both of the following features:
	No nausea or vomiting (may have anorexia)
	No photophobia and phonophobia (but may have one or the other)
Cluster headache—diagnostic requirements
Five attacks, with a frequency of one to eight attacks on any given day
Severe unilateral, bilateral, supraorbital, or temporal pain lasting 15 to 180 minutes (untreated), with at least one of the following features on the same side as the pain:
	Lacrimation
	Nasal congestion
	Rhinorrhea
	Forehead and/or facial sweating
	Ptosis
	Miosis
	Eyelid edema