Always In My Head

I think of you
I haven't slept
I think I do
But I don't forget
My body moves
Goes where I will
But though I try
My heart stays still
It never moves
Just won't be left
So my mouth waters to be fed
And you're always in my head

You're always in my head
You're always in my head
You're always in my head

This, I guess
Is to tell you you're chosen out
From the rest