Burning Crusade Account theft?

I logged out about 5 or 6 hours ago, exited the game and went to bed. Now I've tried to log on and it keeps saying my account name or password is incorrect to the point where it says "Could not log in to World of Warcraft at this time. Please try again later."
I tried resetting the password from the account management a few times but I never got that email, so that got me thinking could someone have changed that too? I can see my characters in the armory and none of them are missing gear or anything (at least what's equipped) Also tried to log on to the Pandaria server, same problem occurs. Any help would be appreciated, thanks in advance!