2.1.2 Infrequent episodic tension-type headache not associated with pericranial tenderness

A 46-year-old office manager reports headaches she has had intermittently for years, counting eleven distinct episodes in total. The pain affects both sides of her head at once, never confined to a single side, and each episode has run anywhere from about thirty-five minutes to several days at its longest. She says vacuuming, gym sessions and general exertion do not worsen it in the slightest, and she noticed nothing troubling about light or about sound with any of these headaches. She has not felt nauseated and has never vomited during an episode. Pressing over her own scalp, brow and posterior neck muscles produces no tenderness at all, and she was adamant that she had not had a single headache day in the previous month.