For most people, their pets are a member of their family. Pet owners want to do everything they can to ensure that their pets are happy and healthy. Like people, as pets age, they can begin to experience more health problems and even begin to have chronic pain. The problem is, it’s not always easy to tell if your cat or dog is in pain. There are a number of things you should look for to determine if your pet’s habits are just changing because they’re aging, or if there is a more serious problem that needs to be addressed.