Congrats about a month!
If you punish her a lot by your hand this may be why.
She may be afraid of you.
If you spank by punishing then spank with a news paper, and not your hand.
She may be afraid of you if you do that.
A mammal is any animal that gives it's babies mother's milk.
Just like men when you turn 18 you stop growing.
But there are still few places were you still grow!
Feet, Ears ect.
For the poo part just shave the hair around it's behind.
For the OTHER part try taking him/her to the vet this doesn't sound normal!