Blulips

I pass through your field of vision.
Unnoticed.
I upset nothing, leave no traces.
But as I leave, you feel a twinge.
A shiver, starting from your tailbone,
And agonizingly slowly moves up your back,
Sometimes splintering slightly to chill the muscles there,
And finally crawling up and inside you skull.
The presence is clear: something was just here.
Something isnt the same. It's not right.
It will be years before you finally realize what it was,
But I will be long gone.