My young DT is not well. I have no idea what is going on. He had been quite ill last summer, so I didn't hibernate him. He was doing great over the winter, eating well and gaining weight. About a week ago he stopped eating. He is very lethargic - when I put him out in the sun today he just barely moved enough to stay in the shade. He is rapidly losing weight and when I checked his mouth today it looked pale. I am going to call the vet tomorrow, but I was wondering if anyone has any ideas what might be going on.