Who is That Girl?

Have you ever felt like you are not you? Like your body is being borrowed by a stranger that fill its soul? Or it just too empty.
Like when you see the mirror, you see a reflection that is you... It's completely your eyes, your face, your body, your hair, but when you look deeper it has different aura.

And after all, you'll ask
Why is your reflection someone you don't know?
But in the end you realize
It's not your reflection that is someone you don't know
But you are
The real version of you
Is some one you don't know
You have no idea, why you are someone you don't know

It sucks
It drives you insane