I get severe headaches whenever I skip breakfast.

After the long meeting, she developed a severe headache that made it hard to concentrate.

The headaching fluorescent lights made it hard to concentrate.

After reading the old diary, she complained of a persistent headach that the doctor recognized as an archaic term.

Several patients reported recurrent sexual headaches that began at the moment of orgasm.

After years of misdiagnosis, she finally found a neurologist who could effectively treat her cluster headaches.

After reading about rare side effects, she feared she might suffer from suicide headaches and sought immediate help.

After long hours at the computer, she often suffers from tension headaches that make it hard to concentrate.

After finishing the milkshake too quickly, she suffered from icecream headaches all afternoon.

After long nights at the computer, she suffered from frequent migraine headaches that slowed her work.