Ask a Dog Vet and Get Answers to Your Dog Veterinary Questions
Hello and thank you for using this site to help you. I see you are off line so I will tell you what to look for to know if you have a sick dog. Take the dogs temperature rectally, normal is between 100.5 and 102.5. Check the capillary refill time buy pressing and releasing a finger on the gums, the area blanches white, notice how long it takes to go back to pink. One second is good, two or more seconds is not. If that is fine you likely are dealing with a dog that might be shy when parents go away. Some will not eat for two days.
If there is no vomiting or diarrhea and the vital signs are normal then I would say it will take time for the dog to settle in being away from the family.