We've had our girl Popcorn (Poppy) for about a week - making her 9 weeks now. She had her second (first real) vet visit today to get her booster vaccine and when the vet was palpating her she growled when she was by her head. She did it a couple times, only by the head, and at one point lunged...

Hi guys, I'm new here but I'm hoping someone can help! We brought home Theo at exactly 8 weeks old on Saturday June 10th. His first week home was wonderful. He was chill and quiet. Playful but not overly energetic. Starting on Sunday (June 18th) he turned into a different puppy. I'm wondering...