Lisa says, "If it was symmetric, I'd be inclined to believe that. But it's only one ear, and it responds (usually negatively) to physical manipulation of the jaw, so I don't think it's chemical in nature."

We agree that she needs a regular doctor, but Lisa has had so much trouble with doctors in the past that she's very leery of just about all interactions with the medical profession. This makes fixing the problem that much more challenging.