Photo disappeared from Samsung S9 after posting to FB and sending through Messenger

[Android Central Question]

A photo I took and sent to FB, and, by Messenger to my daughter, not only disappeared from the phone, but it was grainy on FB. I have tried to figure out how to restore it, and, got an app to do it. BUT, when it was restored, it was only 52.97KB, when the others taken at the same time are much much larger files. Can I restore this pic?