You should alert your veterinarian if your dog exhibits any unusual behavior, including the following symptoms:

Vomiting, diarrhea, or excessive urination for more than twelve hours.

 

Fainting.

 

Loss of balance, staggering, falling.

 

Constipation or straining to urinate.

 

Runny eyes or nose.

 

Persistent scratching at eyes or ears.

 

Thick discharge from eyes, ears, nose, or sores.

 

Coughing or sneezing.

 

Difficulty breathing, prolonged panting.

 

Shivering.

 

Whining for no apparent reason.

 

Loss of appetite for 24 hours or more.

 

Weight loss.

 

Dramatic increase in appetite for 24 hours or more.

 

Increased restlessness.

 

Excessive sleeping or unusual lack of activity.

 

Limping, holding, or protecting part of the body.

 

Excessive drinking of water.