Ok, this is resolved. Somehow, the user meta for your WP user account because corrupt. Deleting it resolved it. This was an odd one, never seen this happen before. Let me know if you run into it again.
Hope that helps!
ps. I was able to see the PHP errors by turning on WP_DEBUG option in the web host control panel under the advanced tab. I was able to immediately see the issue and correct it with the WP_DEBUG on. It is always a good idea to have to option enabled when developing a site, but it should always be disabled on a live site.