No incoming emails

My e-mails have stopped coming in. Google has now changed my email address from ***@*** to ***@*** with different passwords. The one person I have notified with this new address has been trying to e-mail me with no result. I would preferably like to revert to my original e-mail address and password as I do not know how to retrieve the e-mails I received during the last four days. Can you help? How can I receive an answer if I have no e-mail which sends me messages?