Rhett was fine when we brought him home, but Oliver shook for the first two days. I think he was just over stimulated. I'd definitely keep up the nutrical if he isn't eating, just to be safe. We also kept the house relatively quiet for Oliver- no tv, turned off the ringer on the phone, just played classical music softly. Lots of trainers say to keep them crated or in a small area for the first few days to help them feel more secure. By day 3, Oliver was walking around the house like he owned it