I think I may be able to help you recover it. Have you tried to locate a post revision? In your Dashboard view, on the upper right corner, under the “[name]” is a tab labeled “Screen Options.” Click it. Here is a list of the screens where the modules can be hidden:
Posts – Post Tags, Categories, Excerpt, Send Trackbacks, Discussion, Comments, Post Slug, Post Author, Post Revisions
Page – Page Attributes, Recommendations, Featured Image, Discussion, Comments, Slug, Author, Revisions
Select those and return to your Dashboard.
Make sure you select Select Post Revisions and Page Revisions those and return to your Dashboard. Then close the tab.
On your Dashboard click on either "Pages" or "Posts" depending on what type of document are you are trying to restore. More here > Recovering a lost post or page