A dog may obsessively lick and chew themselves, objects in their environment, or towards nothing in midair.

Lethargy is a lack of energy or enthusiasm, which most often presents in dogs as reduced activity levels and disinterest in toys, food, or treats.

Limited mobility in dogs is difficulty or reluctance to perform the usual activities of daily living. A dog who has trouble going up or down stairs, has difficulty getting in and out of the car, is reluctant to jump up or down from furniture or up onto people, or is stiff getting up after sleeping has limited mobility

Limping, also known as lameness, is when a dog is walking abnormally, unevenly, or with difficulty.

Decreased appetite is common in dogs and occurs in association with a wide variety of illnesses and injuries.