What do I do if someone did get into my gmail account and changed thingds?

I do think someone got into my gmail account because even the secret question doesn't work . Any suggestions on what to do ?

What do I do if someone did get into my gmail account and changed thingds?
if it is still on your alternate email adress aka this one, have your password sent to you. then get on and delete your account. if it is not, you are free to create a new one with this email address. try to create a new one now and you will see
Reply:Create a new account, but this time don't tell anyone about it!
Reply:Change the PW. Dork.
Reply:uh, change your password......
Reply:I had someone get into my yahoo acount recently and change all my info. There really is nothing you can do, change your email address on your bank account and any website that you consistently pay for with your credit card because those numbers are memorized and if the hacker is smart enough they can get access to those numbers. Best of luck! Plus, make sure to let everyone you talk to on that email know its not you because the hacker of my email address sent letters to everyone in my address book that I was planning a trip and needed help financing it. They even listed an address of a bank where to leave the $3600. Once again act fast and best of luck!
Reply:tell everybody you know that someboady is on it as they might start slaggin of your friends and your friends think its you.
Reply:create a new account
Reply:Cancell your account asap, they could be stealing valueble info. But i can't be 100% sure for you that it's someone else, thats up to you!
Reply:Create a new account, but this time don't tell anyone about it!
Reply:Report it donot give your pw to no one
Reply:Freak out!!!
Reply:you should change the password and if that doesnt work just start a new account
Reply:report it and create a new one.