Spiritedly
Well-Known Member
My GSD is very similar. She was fine until she was about a year old and then started getting aggressive and nervous when out but was/is a completely different dog at home. I was lucky enough to have a private yard so she could run around there with our other dog and not worry about meeting other dogs or people. A year or so ago she was diagnosed as having EPI which can cause personality changes and aggression and since starting treatment for it she has improved although she still can't be let off lead in public and I tell people not to approach her as it's not worth the risk.