My 13 week boy, Finn has front paws that shake when he's just sitting- it's kind of like a trembling, just one paw at a time, always when he's sitting and looking up at me. (I should also add that it's usually after he's been racing around which make me wonder if it's a muscle/tired thing?) I've asked the vets about it, but of course he never does it when we're at the vets- otherwise he's got great health and energy; He currently weighs about 25 lbs and the vet says he's still really lean, (ribs felt easily) and I wondered if maybe he needs more food. He's currently getting 3 cups of Iams puppy everyday. Has anyone else seen this shakey leg thing?