My dog has hurt its leg and she isn't moving it like there meant to. She usally walks to the bus to me play the last couple days she has been just sitting on her mat and she has been shivering when it is not cold and also she hasn't been eating much! but todays she got up and tried to walk and thtas when i noiced! my dad thinks she doesn't need to go to the vet but i do! please help!!!!!