Move out and get a restraining order on him.
To get your stomach to stop hurting eat a bland diet and drink some Sprite or Ginger Ale.
It depends what you did before it started hurting there's medicine you can buy
some hurting some not
Go to the doctor
they dont exist
to stop hurting me
probably something that has to do with the vitiams and meniarls in it
if people stop hurting and dumping pets
See a doctor
Jump on their heads.
Give them some love
you should take it to a vet to get the teeth trimed