Bed bugs.
It's all in your mind. Don't underestimate the power of the brain
If you mean "exist" as in an object made of matter/energy, then no.
But I believe people can percieve things in their mind, and these things can still have a tangible effect on them even if they don't exist in real life. So yes I think ghosts can exist in some sense.
Man if it was in my mind it wouldn't even happen cuz I'm far too distracted to be paranoid. I'm often not even thinking about it, either drawing or watching cartoons, and it happens. If it was bugs or something I would probably see it. No bug is that fast. My first reflex is to swat the area of my body cuz I grew up in a country where houses had no glass in the windows.
Maybe its a perv from your country, cuz he's also just as fast as your reflex?
Maybe it just a mental itch?
shit I'd rather it be a ghost than a perverted ninja.
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