Wow. How frustrating and embarrassing. Apparently Facebook has a secret message inbox. Secret to you, that is. You could potentially have many, many unanswered messages (and spam) that you never knew about. Potentially from fans, long lost friends, one of the Hemsworth brothers. 
Potentially making you a jerk for not answering.
This week’s link is an article about it on Hello Giggles and where to find this hidden stash.
http://hellogiggles.com/apparently-theres-another-hidden-message-inbox-facebook/
I checked mine and while I had legitimate messages that went without a reply (so sorry!), there were just as many weirdos and ne’er-do-wells trying to make contact with me. Potentially.
Have fun checking your mystery message box.
