Unnerving

One

It starts so subtly that you don't realize it's started at all. You look over your shoulder once when you are walking. Somewhere deep in your mind, so you barely notice it, you feel like you're being followed. You don't know what it is, you don't know why you even feel that way. But you ignore it. You looked back and nothing was there, so you dismiss the feeling, or you try.

But you can't shake the feeling. It stays in the back of your mind, bugging you. When you try to sleep, when you walk home, whenever you think you're alone.You feel it, just slightly. Enough to make you look back.