Has anyone else experienced his? Occasionally it looks like one of his legs has cramp, it could be either front or back, and he either limps about for a bit or falls over! If you give it a rub, it loosens and he's fine again. He's perfectly ok in himself, a little too thin due to his over active thyroid, but he's eating well, playing etc etc. any help would be much appreciated. He will be going to the vet when mum is back form holiday to take him ( he has extreme car phobia so needs her with him!)