Answer:
I make you weak at the worst of all times. I keep you safe I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak but seldom the bold.
Soft, hairy, from door to door. I am the pet that always stays on the floor. What am I?
In a tunnel of darkness lies a beast or iron. It can only attack when pulled back. What is it?
Cloud is my mother, wind is my father. What am I?
I am the thing that is used to make your weight. What am I?
No matter how little or how much you use me, you change me every month.