Is Gmail the only email application you use with your account, or do you use Outlook or some other service to access your Gmail account?
As far as I know, Gmail will never put anything straight into the Trash folder unless you have filter set up specifically to "Delete it" when an incoming message matches the filter parameters. You might want to check your email client and/or GMail settings for filters that might have done this.
I wish my Trash folder had my email in it. ![]()