Please be more specific.
Harry is in the Car with Susan and Tera West. They realize the Lycanthropes (the streetwolves) are following them. Harry drinks the super coffee, jumps out of the moving car, and confronts them. After it wears off, they beat him badly.
From his POV that's a Good Thing.
Probably so, but still, finding out that someone you loved and thought dead for over a decade has actually been alive the whole time and didn't tell you has got to be pretty traumatic.
Edit: You also forgot watching the Loup Garou's rampage through SI in Fool Moon and everything I pointed out in Ghost Story.
Before Storm Front: Growing up without a mother, His father dying when he was young, Being betrayed by Justin (and apparently Elaine), Being attacked by HWWB, Watching the gas station attendant murdered by HWWB, Killing Justin