Managing personal Outlook.com account settings, security, and privacy
Hi alabon,
I'm sorry to hear you're experiencing this issue. I can certainly understand how alarming it would be to find that an account which was working normally very recently now appears unavailable.
Please note that this is a community forum. We do not have access to Microsoft account records or internal account systems, so we're unable to verify the status of an individual account or determine whether it has been deleted, renamed, disabled, or otherwise affected.
Given the circumstances, the recommended next step is to use the Help with the Microsoft account recovery form guidance from Microsoft Support, which explains the recovery process and available options for account recovery: Help with the Microsoft account recovery form
I realize this may not be the outcome you were hoping for, but the recovery process described in that article is the appropriate path for account-related issues of this nature.
Good luck, and I sincerely hope you're able to regain access to your account.