Where is the content of my post?

hello support.

I got a really irritating problem. I spent a couple of days writing up my last post. Than, once I terminated it I just changed the publishing date since it wasn't appearing in the latest posts section. After a couple of attempts I realized the system totally erased the content of the post and saved it empty.
How does it possible? Is there any way to recover it? Any track of the original post?

i hope you could help me.