All postings by admin marked as spam

Since yesterday morning, all of my posts -- be they new threads or replies to existing posts -- are being blocked as spam. There does not even have to be a link inside. You can simply type the word "test" or "hi," hit the reply button, and the message "Sorry, but the system detected your content as spam" will appear. This only seems to be happening to me (as the super-administrator). If I turn off the anti-spam control, then the board gets flooded with spam -- at least two per minute -- so that isn't an option. What can be done to correct this problem? My personal login info is below.