I got a headache the other day

It was very annoying

My theory ? Invisible Monsters attack you.

My solution ? DANCE WITH MONSTERS !

Why ?

The invisible monsters need stationary immobile targets, that's the only way they can induce headaches.

You will notice in theory that when you move your head around, bobbing to a beat, or dancing, the occurrence of headaches is greatly minimized, completely eliminated.

In conclusion Invisible Monsters, Ghosts, and Demons try to give human beings headaches, your best bet is to dance with them so you tire them out, and they give up