I have had smaller dogs, and I love my new pyraneese puppy. Its hard to think of her as the puppy when she is the largest animal I have. Compared to other dogs I noticed right away this little puppy had a different build, big muscles, and stance not of a typical 8 week old puppy. She is 5 months old now and she walks differently too, almost with an extra swing in the hips, her ribs seem to sway from side to side when she walks. She had a limp a couple weeks ago and after thorough examination, the vet said there was nothing wrong with her but obviously limping. She gained 30 lbs that month, and she said growing pains or a lightly pulled muscle. She has stopped limping now. She walks funny in comparison to other dogs, having never had a pyraneese before, is that normal?? Maybe its like a happy butt wag when she is with people?