Just run the Authenticator
and press the "MOJANG" button. After that you'll be able to login into your normal account again.
If you can't login into your normal account, you still have the MCLeaks-Mode enabled! In this mode you will NEVER be able to login into your normal mc-account, please do not try using your normal account in this mode, this mode is for MCLeaks-Alts only!
Don't panic, nobody has stolen your normal account, it's just you who does not understand the correct mode-settings.