never-endingheadache

noun
UK /ˌnevər ˈendɪŋ ˈhedeɪk/
US /ˌnevər ˈendɪŋ ˈhedeɪk/

A headache that feels like it will not stop.

After staring at the screen all day, I had a never-ending headache.


OTHER MEANINGS

2. A problem that seems impossible to solve.

Fixing the old car turned into a never-ending headache.

3. A person or task that keeps causing trouble.

The broken printer is a never-ending headache for the whole office.

4. A feeling of worry that does not go away.

Waiting for the test results was a never-ending headache.