Excessive panting when not hot can signal anxiety. But check for other causes like illness first.

Shaking, shivering and trembling can indicate fear, anxiety, or too much stress.

Pacing, not settling down, and running to the door or window can be signs of stress.

Unexpected growling, snapping, or biting could mean a dog is feeling threatened or insecure.

A dog who suddenly starts hiding under furniture or in corners may be frightened or overwhelmed.

Whining, whimpering, and crying can express stress, anxiety, or seeking comfort.