You have been hacked. Your account is being logged in and spreading a False DA pages with a script kitty and a key logger.
(You may already know this, but I am gonna say it anyways, just encase.)
If you know any better, when you can get back in your account change all your passwords to everything!
To see the real story behind the hacking please (Or at least The story that I think makes sense) check my newest journal because your personal information may of been leaked. Click my icon to go see it.