Head ache and Pesterer

Head ache noun - Pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs.

Pesterer and head ache are semantically related. in annoyance topic. In some cases you can use "Pesterer" instead a noun phrase "Head ache".

Pesterer noun - A persistently annoying person.

Head ache and pesterer are semantically related. Sometimes you can replace phrase "Head ache" with "Pesterer", this terms are similar.