can anyone help me? my facebook account was hacked and he already change the email and password of my account.?

[Jasper]

help me please. somebody is using my facebook account, he harrased me and my gf

[Angeleyes]

Inform the facebook help section about what happened. Also you can report the account as fake.

[AKHIL]

Dude .. FB isn't something that is too easy to be hacked.Try these
1) Go log in to your e-mail account which was the primary account. Chances are that you must have got an e-mail from the fb team telling that someone changed your e-mail. there will be a link saying "if u didn't do this click on this link " ... click on it and follow the instructions.
2) Ask any of your friend to go to your profile and ask him to look at the URL bar. There will be your user name there. For eg: "http://www.facebook.com/username". get that username. Now you go the login page and click "forgot your password". when prompted to search for your account enter the Username u got. the following screen wil give you options to reset your password. There will also be a "No longer access to these ?" link which you can click for alternative ways ..
3)Try going to this link https://www.facebook.com/hacked

Hope that helps ... All the best !!