Describe the features of the various categories of headache:
Traction or inflammatory headache
Tension headache presents as a mild to moderate bilateral non-pulsating tightening pain that is not aggravated by routine physical activity.
A migraine headache may last 4 to 72 hours and may or may not be precipitated by an aura. It is usually of moderate to severe intensity with a pulsating quality, aggravated by routine physical activity, and accompanied by nausea, vomiting, and photophobia.
A cluster headache usually occurs at night in may last from 15 to 180 minutes. There is usually severe unilateral orbital, super orbital, and/or temporal pain that is accompanied on the same side of the face with sweating, lacremation, nasal congestion, ptosis, rhinorrhea, eyelid edema, and/or conjunctival injection.
A traction or inflammatory headache is an acute new onset headache that is of increasing intensity; this type of headache is a medical emergency as it is symptomatic of a more serious condition such as hemorrhage or infection.