Google Accounts have a unique Account Recovery process. If you attempt to walk through the process at: https://www.google.com/accounts/recovery you will be able to retrieve the account information. It will require that you confirm your identity.
REGISTER or login:
when you key in the password, what happens?
Just curious, did you use the same password for all 3 e-mails? Are they case sensitive?
Is anyone you know receiving e-mails from these accounts? You might have a virus or were hacked.