I think i got Hacked

As Mileena mentioned, Sinnisster, you can recover your account by filling out the account recovery webform. - https://us.battle.net/account/support/secure-computer.html

• First, make sure you secure your computer. You will need to run multiple virus scans and if possible use more than one scanner.
  Secure Your Computer: http://us.blizzard.com/support/article/30805


• Make sure your e-mail is secure by changing the password. Do not use the same password or any previous passwords associated with your battle.net account. If possible, use another computer to make these changes.
  Secure Your Email Address:http://us.blizzard.com/support/article/30806


• An investigation of the account will be initiated when you submit the online webform. Once your items are restored, if you notice any additional missing items please submit an in game petition.
Contact In-Game Support to Report Any Character, Item, or Currency Losses:http://us.blizzard.com/support/article/30807

Our game masters will look into your report and assist with any restorations needed. It is important that you continue checking your system for additional malware to prevent future compromises.

In addition to computer security, you may wish to look into obtaining a Blizzard authenticator for your account.
Battle.net Authenticator FAQ - http://us.blizzard.com/support/article/24660

Battle.net Authenticator (United States) - http://us.blizzard.com/store/details.xml?id=1100000822
Battle.net Authenticator (Canada, Australia, New Zealand and Latin America) - http://us.blizzard.com/store/details.xml?id=1100000823