Hi all, I have a one year old collie bitch. She is a very healthy and active dog. The last few evenings we've noticed that when she has been asleep and then gets up, her back legs seem stiff and she limps for a while. Its only for a short time, and shes fine the rest of the time but I'm just a little concerned about it. Shes going in for her spay next week so I'll mention it to the vet but just wondering if anyone had any ideas on what it could be.