It sounds like he has seperation anxiety... You might want to take him to the Vet and she if he'll put Dinky on any kind of medication. He might not be able to get 'sick' but he can become hypoglycemic - meaning that the lack of wanter and food has caused his blood sugar to drop. This can be really dangerous in this breed because of how small they are...
I hope everything works out!
__________________ Jessica Momma and personal assistant to Fynnlie |