Answer:
I can run but not walk. Wherever I go, thought follows close behind. What am I?
I am constantly overlooked by everyone but everyone has me. What am I?
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down but should not be forgotten.
What has an eye but cannot see?
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.