Harrys Anger. Possible meanings

[tifaheart2001]

No: HPFGUIDX 74443

Now anyone who's read OOP can tell that Harry, all year, has some 
sort of bubbling rage inside him that he lets out on people, right?

Well, I think I've come up with a possibility for it, remember in 
DumbleDore's office, he said that throughout the year, He thought he 
could see a trace of Voldemort behind Harry's eyes i.e. the 
connection between them.

thats probably where its coming from and I don't doubt that it will 
let up anytime soon, if Harry is taught Occlumency it will though, so 
that might be a possibility for it.