I had never heard that ADs could cause it, guess you learn something new everyday.

I do it and my Mom does it, she's not on anything, so I figured it was a familial thing. Anyhoo I'd ask your dentist about it because they can fit you for a night guard if your insurance accepts it. If not and you think it might help I got one at the drug store for $25 that you shape to your teeth. It does help although I don't like wearing it.