My Bertie bun is 12/13 years of age, he's a house bun and is a very lively and happy bun. He does like his rest and sleep after a lively 1/2 hour. He eats like a horse but with being elderly struggles to keep the weight on him, he's not skinny by no means but I do have to monitor his weight. One thing he does do, when he wakes up after sleep he really stretches his back Paws and it's not always after his nap. I'm positive he's not in any pain but he does seem like he's stretching those old bones. A lot of his poops are good hay poops but he does leave a lot of poops that he should be eating, is there anything anyone can suggest? I'm aware he could have athritus but is there anything that a vet can give him?. His eye sight isn't brilliant anymore so I know taking him to the vet would stress him out terribly.