Numbness

I went to the dentist this morning. For the third time in two months. I've got another appointment in two weeks to make a nice even four in two. She's replaced crumbling fillings and done a little "deep cleaning." Today, two rather deep cavities were re-filled. I moved a little when she did the shot and it didn't numb my teeth, so she had to re-jab me. On the way home, I yawned and there was a pop in my jaw and my ear started going numb.