- vomiting
- diarrhea
- unintended weight loss
- change in appetite- increased or decreased
- change in normal activity level: lethargy, hyperactivity or restlessness
- limping
- sudden inability to move back legs
- crying in pain when touched
- clumsy or disoriented behavior
- seizures
- any loss of consciousness
- coughing
- panting
- any difficulty breathing or labored breathing
- any blue, purple, or pale hue to the tongue and gums
- sudden collapse
- excessive drooling
- straining in the litter box without producing any urine
- crying out while urinating
- change in urination: location, frequency, amount, color, smell
- bloated abdomen
- sneezing excessively
- uncontrolled bleeding
- nose-bleed or bruising anywhere on body
- hair loss
- runny eyes or nose
- squinting
