Can you feel them?

Sometimes you can feel them, sometimes you can feel their avid legs, dancing upon your skin, so that you know they're there; save yourself. But then there's times when your eyes are shut, you can't feel them, you don't even know they're there. So they slowly peel at your rind, ripping off tattering pieces; they overtake you, they eat you alive; leave nothing but another forgotten carcass to bleed into the ground.