Dogs Give Off 10 Key Signs When They're Feeling Sad or Lonely

Decreased appetite. Dogs who are feeling sad or lonely may lose their appetite or eat less than usual.

Increased sleep. Dogs who are feeling sad or lonely may sleep more than usual.

Destructive behavior. Dogs who are feeling sad or lonely may become destructive, such as chewing on furniture or digging up the yard.

Licking or chewing on their paws. Dogs who are feeling sad or lonely may lick or chew on their paws excessively.

Withdrawal from people and other dogs. Dogs who are feeling sad or lonely may withdraw from people and other dogs.

Changes in vocalization. Dogs who are feeling sad or lonely may bark, whine, or howl more than usual.

Change in activity level. Dogs who are feeling sad or lonely may become more lethargic or less active than usual.

Changes in grooming habits. Dogs who are feeling sad or lonely may groom themselves less or more than usual.

 Hiding. Dogs who are feeling sad or lonely may hide in closets, under beds, or other secluded areas.

Changes in eye contact. Dogs who are feeling sad or lonely may avoid eye contact with people or other dogs.