Yep, as they said.

I would stop using the carefresh...that stuff is not good for rodents. Just the fact that the big stores use it should hint at that. Hehe... sorry.

But seriously, that stuff is way too dusty for rodents. Aspen is much much better and cleaner. They may just be scared in a new place and reacting to the dust of the bedding. Keep them warm, and all other things as Joanna said, and keep an eye on them. They should settle down in a few days. If not, go ahead and get them an appointment.