User Login Info Changed (not by me)

My WordPress account was set on auto login so I could update my blog directly form the WordPress Admin link in lower right. For some reason that is no longer working, and not only that, but WordPress is telling me My username is invalid.

In addition, I request password lookup and it again tells me there is no account on file with said username or email address.

I know I’m not losing my mind and what my settings were and now wondering how the heck these settings got changed. And there is no recourse to contact anyone to have my account reset so I can access it and post to my blog?

A bit flustered here. Can anyone help? I’d appreciate it truly.