Saved draft disappeared?

For the past month, I've been using the draft option on Outlook.com to write an ongoing list to myself, periodically saving the draft.  I put my own Outlook address in the "To" form, so it would send to myself should I accidentally hit "send". Until today, there was no problem, the draft was always in the Drafts folder ready to be edited. I last edited this draft on 8/19, and went to check on it tonight, 8/20, and it is gone. All of the other drafts that should be there are there, but this one draft is gone, and is not in the deleted, sent, or Inbox folders. I have tried the recover deleted messages tool, but that did not help. As of right now, it seems that the draft has vanished without a trace, as if it was never written. Any help would be appreciated.