Dogs have no mouth, they can not tell you exactly how they feel, but they can show behaviors similar to human depression. If your veterinarian has ruled out other health conditions, you may have a case of depression in your puppy. The signs are these: No longer wants to play: A desperate or sad dog will not have the same energy levels and the different games you can offer will not have the usual effect.
You will see food in his bowl: If your dog does not show his usual readiness for his favorite food and is losing weight, there may be depression. Sleeping with prolonged sleep: If your dog spends more time in bed than usual there is something wrong. For example, a 15-year-old puppy normally sleeps 14 hours a day and now this schedule has been increased to 20 hours, which is a big change. A death in the family: You are not the only one mourning the loss of a family member or another pet your dog will be just as upset as you are. So he goes through a good period of yours .Changing the house: Do not be surprised if your dog has acted strangely since you changed the house. Change can be difficult for pets and your dog may feel depressed until he gets used to the new environment.