If you are unsure if your pet may be sick, please contact us at 905 892-8000. Some clear symptoms of illness include; loss of appetite, loss of energy, vomiting, diarrhea, coughing, sneezing, increased thirst, abnormal urination or defecation, itching, loss of hair, skin lesions, bad odour, runny or squinting eyes, shaking head, or limping. Our pets are very attached to their normal routines, if your pet suddenly changes their routine, this could be a sign of illness.