Answer:
As a state in America I am round on both sides and high in the middle.
Some people avoid me some people count me some people just consume me
I am constantly overlooked by everyone but everyone has me.
You write on me and secrets I can keep. In places never seen. I spin like a top. Though stiff as a board I'm often described like a mop.
I am needed for most animals and hardcover books
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?