2.4.2 Probable frequent episodic tension-type headache

The patient reports an attack of headache confined to the left side of her head, rated as severe, which came on and grew worse as she walked back from the bus stop. She describes a throbbing quality that felt different from her usual headaches. The pain has lasted, on and off, from as little as forty minutes up to nearly five days on her worst occasions, and she has never noticed light and sound bothering her together during these spells. She denied any nausea and had not vomited. Over the past year she estimates 177 days affected by headache, averaging around eleven such days a month, a pattern that has now continued for close to four months, with at least twelve separate episodes since they first started two years ago.