Here's my story:

Last week, I had a filling on the right side of my mouth repaired. The dentist used a drill. Starting right after that, I began noticing a "clicking" feeling in my right ear drum, particularly when I chewed (I feel it now as a I chew a piece of gum). Then, yesterday, I noticed that the right side of my head immediately above my ear felt like it had been bruised. I don't have a headache, but if I touch that part of my head with my fingers, it feels slightly sore (and there's no corresponding soreness on the left side). I can't remember getting hit there or falling - although my two-year old may have hit me there with a toy - which could explain it. Any ideas what could be going on? Is this all connected to the dental work, or could something else be at play?

Thanks.