Q. My female dog is 12 years old, Shepherd/Collie. Right now all she wants to do is sleep, not keen on eating.
A. A check up wouldn't hurt, just to ensure there is no underlying illness. Sleeping quite a lot as pet's age is pretty normal. It is possible her mouth/teeth may be bugging her a bit and why she doesn't always seem interested in eating. I would make sure to have her teeth checked as she may have some dental disease, loose, cracked teeth or even sore gums. You can always add a little warm water or low sodium broth to her food to help entice her t eat.