relentlessheadache
nounUK /rɪˈlɛntləs ˈhɛdeɪk/
US /rɪˈlɛntləs ˈhɛdeɪk/
A headache that will not stop hurting.
She stayed home from school because of a relentlessheadache.
OTHER MEANINGS
2. A problem that keeps bothering you and will not go away.
Fixing the leaky roof became a relentlessheadache for the whole family.
3. A dull pain in the head that lasts a long time.
After staring at the screen all day, he had a relentlessheadache.
4. Something annoying that feels as bad as a never-ending headache.
The noisy construction outside was a relentlessheadache all morning.