Smokey will be 9 years old in a few days. I've noticed that her whiskers and face are looking almost white and her once dark grey fur is turning a light chestnut brown. I've also noticed that she's been shedding a lot more than usual and is leaving more hair balls all over the place. As her grey fur falls out, it is being replaced with light brown fur. She's also lost a lot of weight in her face and her body has slimmed down substantially. Other than the physical changes, she is still the same cat personality wise. Lots of energy, eating great, good stool, etc. Should I be concerned about this? I know she is getting older so I expect to be seeing the vet more often. My family and I have been saving for it and we are prepared. I just want to know if these are normal signs of aging or something else.