I have been having a problem with my puppy she has been doing fine but just out of nowhere she's biting like crazy and chewing everything up. I know that this is her teething period but it seems like she is getting a bit aggressive and I don't know what has caused it. We don't play tug with her, I take her for walks almost every day, we also do like trick exercises for treats and sometimes play fetch. She still has tons of energy after that while me on the other hand do not, I'm just getting frustrated and really need some advice. I love Shadow and don't plan to give her up I just need so guidance.