Our puppy went to doggy day care last Tuesday and she came home with a bum back leg. There doesn't seem to be any soreness to the touch as we have felt it over and over. After she moves for a little bit, she seems to be fine. Its not Saturday night and she still hobbles a little bit when she gets up and then is mostly fine after about 10 steps. We are guessing she just has a bruised muscle or sore muscle. Is there anything that we should do or just keep her activity down for a few days?