The only thing I did notice that I had an autosave on one of the pages and I selected a change before that autochange. Forgot to tell you that I did do that. You might check that. I don’t know if that had anything to do with it but I did do that.
For some odd reason my pages are now showing back up in the edit screen. I didn’t do anything; just went into the website and checked and it was all back! I hope the same happens for you. I don’t understand why we didn’t any replies about this problem.
Good Luck!