Answer:
What has a bottom at the top?
After you go through a fall, I will take over. All life will stall, or at least grow slower. What am I?
I may be of the eye, in order I am pie. In my center there is a star, I keep medics where they are. What am I?
I am the kind of a tree that is carried in your hand. What am I?
I have a hundred legs but cannot stand. I have a long neck but no head. I cannot see and I help keep your house neat and tidy.
No matter how little or how much you use me, you change me every month.