If your dog is losing weight consistently over 2-4 weeks or is slowly losing weight for a prolonged period, it’s often a clear indication of a health problem.

9. Repetitive coughing, gagging, sneezing or vomiting

If your dog keeps choking or getting sick when it eats, pay attention. Constant vomiting may indicate an allergy or even worse in older dogs. If your dog keeps coughing, it may be kennel cough, which can become a serious illness.

10. Pushing its head against objects



If your dog is constantly standing with its head pressing against the wall or other objects in the house, it’s a warning sign for several dangerous head problems. Take it to the vet immediately.