Can an 11 week old rottweiler pup have growing pains or muscle aches? My puppy will whimper and yelp out of nowhere when nothing/nobody is near him. He is very active and has been playing with bigger dogs lately. It has only been 24 hrs since this yelping started. He has grown extremely quickly in the past few weeks. We don't think the other dogs have anything to do with it as he has been around them many times in the past few weeks. Please let me know if you have any ideas about this. Thanks.