Seriously, what the %$&#.
I have another appointment (my regularly-scheduled cleaning) on Wednesday of this week, and we're going to look at it again. I haven't been in debilitating pain for a week, just an occasional dull nagging (like right now, unfortunately). The amoxicillin took care of whatever the infection was, and now it only really bothers me when I chew on it, and even then not very much. I'm not having a healthy tooth drilled into if it was just a freak infection.
Interestingly, the problem (or lack of problem) seems to be the tooth in front of the one I thought was a problem. Dr. Garfield says that nerve can trick you...
Sorry I don't have anything more interesting to post right now, but a lot of people have been asking about the tooth, so I thought I'd post an update.