Michelle, I forgot to mention that a few weeks ago Poppy did the same kind of thing as your dog. She started limping, wouldn't put the foot on the ground. I couldn't find an injury, swelling, displaced bone, etc. I watched her for a few days and after about a week she was running on it like nothing happened. I suspect she simply sprained or pulled a muscle in some of her running around or jumping, and the vet wouldn't have been able to do anything. So don't feel compelled to rush to the vet right away - close observation is a reasonable approach (especially if the vet bill is going to sink the budget). Cinnamon had her recent toe surgery after giving her a few days to see if it would heal on it's own. (I had a similar injury next to my thumb nail a while back and waited a lot longer to see the doctor - I guess that means I'm treating the dogs better than myself!)

SRS