This is the face of dyskinesia, the kind that slowly rips you up; https://www.youtube.com/watch?v=CaJymwziF-M . You can see the rhythmic components of the choreonic form of dyskinesia. I've found videos of purely dystonic individuals that are twisted grotesquely and can't control the sustained quick motion but are like "bent out of shape"; both can be present in the same person, and definitely scary to the uninitiated. This is a case for dbs, for she has little response left to the medication (opinion). There is a wealth of free videos on you tube, some, if everyone read there wold be no mystery of what PD does to a person, such as this https://www.youtube.com/watch?v=3wg9ExKwZy4 as a general primer.