Any difficulties breathing: short or shallow breaths, increased effort, gagging, choking

Weakness, inability to walk, sudden collapse

Seizures lasting more than 3 minutes, or multiple seizures in one day

Non-productive retching/vomiting, swollen or distended abdomen

Allergic reactions including swelling, rashes or itching

Excessive or persistent bleeding

Diabetic animals refusing food

Inability to urinate, straining to urinate

Pregnant dogs/cats that have gone more than 3-4 hours between deliveries

Bumping into things, becoming disoriented

Experienced some kind of trauma (i.e., being hit by a car, blunt object penetration, falling more than a few feet)

Ingestion of toxins, such as antifreeze, rat poison, household cleaners, medication not prescribed

Seeing symptoms of heatstroke such as heavy panting, lethargy, or vomiting