Missing Posts, Publish Button, Comments, blog

I am missing all my posts and comments, and when I go to add a post, there is no publish button, it simply says “Submit for Review”. I tried deactivating all plug-ins and using the default template – NOTHING has worked. All I did was edit a date on an older blog to reuse it. It posted fine, published fine, was there – then I was checking the spam and went back to approve a comment and all comments were gone. Then I discovered all posts were gone, too. Even in my Yahoo business account, all files are missing from the blog.