a pain in your head:
I had a really bad headache, and couldn't go to work.
a splitting/pounding headache (=a very bad headache)! Do not say that you 'have headache'. Say that you have a headache.
a problem that is annoying or difficult to deal with
—headachy adjective:WORD FOCUS: pain
a headachy feeling
pain in different parts of your body: headache, backache, toothache, earache, stomach ache, my leg/arm/neck etc hurts
to feel a lot of pain: be in agony
what you say when something hurts: ouchpain
➔ See also pain