Answer:
I can't go left, I can't go right. I am forever stuck in a building over three stories high. What am I?
Face with a tree skin like the sea. A great beast I am. Yet vermin frightens me.
Ripped from my ancestors home beaten and burned I become a bloodthirsty killer.
Take it and you will lose or gain more than the others.
If I drink I die. If I eat I am fine. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?