Answer:
If you lose me, you may cause people around you to lose me too. What am I?
Better touch me before you proceed to second.
I have two bodies joined together as one. When standing still, I run and run. What am I?
I come without being fetched at night hides away as soon as daylight strikes. Although I may look small I am much mightier than what you can imagine.
I go around in circles, but always straight ahead, never complain, no matter where I am led.
No matter how little or how much you use me, you change me every month.