These are some key behaviour changes to look out for that could show you something is wrong with your dog.

• Changes in appetite and thirst
• Changes in bowel movements
• Changes in frequency and amount of urination
• Change in their smell
• Retreating and no longer wishing to socialise
• Lethargy

Other signs of possible illness or injury:

• A distended and painful belly
• Diarrhoea and vomiting
• Limping
• Choking, retching or coughing
• Yelping or whining
• Discharge from eyes, ears, nose or rectum
• Difficulty breathing, wheezing or panting
• Bleeding
• Excessive scratching
• Disorientation, confusion or aggression
• Pacing
• Strange lumps
• Lack of responsiveness
• Any other change in behaviour that concerns you