ache, aching - a dull persistent (usually moderately intense) pain

cluster headache, histamine headache - a painful recurring headache associated with the release of histamine from cells

hemicrania, megrim, migraine, sick headache - a severe recurring vascular headache; occurs more frequently in women than men

sick headache - a headache accompanied by nausea

sinus headache - a headache resulting from congestion or infection in the paranasal sinuses

tension headache - a headache located at the back of the head; usually caused by body tension resulting from overwork or psychological stress