This Christmas, my dog was in a house fire and smartly helped rescue my kitten that was trapped (he thinks it's his puppy and carried it by its nape when it was young), but our two puppies one female and one male had been around him. He was just fine, but suddenly he's gotten badly aggressive. trying to kill both of them and any intervention gets the human growled at and attacked as well. When he gets over bouts, he shakes badly and takes a bit to calm down. If taken out of the room and comforted, he stops shaking.
He also got mad at me and broke my tooth, then lay down shaking a lot and looking pitiful.
I think someone has broken into my house also, and someone did break into my house two months back and my dog Jazz prevented the intruder from fully entering the house. But as I said, I think someones been in the house since then, possibly.