Like bckrazy said, you should make their crate a safe place that isn't used for punishment, where they can go if they are scared. If they want to stay together, get a large crate. But you might want to get 2 seperate crates incase they need some space.

Also, do take them to the vet.

Where they bought from a petstore? Becuase petstore dogs normally come from puppy mills where the living conditions, health, etc. are not the best.

-Chrissy