Steve -- the odd mouth twist seems more like dystonia. My classic dystonia is my "monkey paw" right hand that curls in. Right Foot curls in, and the oddest is my mouth will twist. The muscle that opens and closes your jaw both decide to see who will win (leaving me with a closed jaw). First time my wife saw it, she thought I was having a stroke. Not fun.

Thankfully the dystonia is well controlled by my Levadopa medication. Oddly enough Parkinson's was left side only, Dystonia right side only (writers cramp started when I was in second grade -- never heard the term until my MDS asked how long my hand had been that way when writing).

MRI should give an idea if things shifted, so hoping for the best. Keep us up to date.