My 8 month old Lab (Max) favors different legs right after he gets up from a nap. He limps a little and then he's fine. We took him to the vet to get it checked and of course he didn't limp at all. She said since it is intermettent it could be growing pains. I also talked to the breeder and he said the same thing since they grow so fast....

Just looking for any input.

This is usually refered to as pano - inflamation of the bones as they are growing.

My Shepherd had Pano -- limps would come and go. They usually stop by the time they're one year.