Why is my dog being so clingy all of a sudden?

Dogs will often develop separation anxiety when left at home as your work or perhaps if left in kennels when you go away. The effect of separation anxiety can manifest itself in lots of ways, one of which will be your dog being clingy all of a sudden. Your dog can be clingy all of a sudden due to separation anxiety.

What does it mean when a dog stays by your side?

Another reason your dog might stay close to your side is positive reinforcement. If every time you are with your dog, he gets affection or treats, he’s likely to follow you around more often, Dr. Barrack says.

Why does my dog want to cuddle with me all of a sudden?

Your dog is stressed out. Life changes can be difficult for dogs to deal with. So if your pet is suddenly stuck next to you like glue, it might be a sign that they’re stressed. Pets can be sensitive to changes like moving to a new house, a new roommate or partner, or even changes in work hours, says Dr. Woodley.