About a week after telling all this to my doctor (and I'm not ashamed to say that I was happily five pounds lighter), she called me in to let me know what was causing it. You see, I have a tendency to sleep with my head under the covers, and my dog will usually sleep under the covers as well. Recently something about her has made her irrestisable to fleas. I would say it's her big brown soulful eyes, but its become quite a nuisance, so on went the flea medication. It smells wonderfully like baby powder, and it seems that my constant inhalation of it has been the culprit of all my maladies.
We've taken the dog off the flea medication since, and I'm finally getting around to eating a nice hamburger, while my dog is sitting in her bed scratching her ear.