| Fear of/withdrawal from people or other dogs/cats |
| Aggression to people/other dogs or cats |
| Stereotypical/repetitive/ritualistic behaviors (e.g., circling, overgrooming, licking, sucking) |
| Elimination changes and elimination in inappropriate areas |
| Development of fears/phobias associated with environments/stimuli (e.g., storm phobias, fear of car rides, leash walks, new places/toys) |
| Distress when left alone |
| Increased reactivity in any situation |
| Profound changes in activity level (either less or more) and reactivity when resting or asleep |
