Low amounts of energy due to hunger, lack of sleep, illness, or physical fatigue. Moderate to high presence of stress. Menstruation and ovulation. [en.wikipedia.org]

Episodes are often triggered by alcohol, caffeine, hunger, fatigue, stress and nicotine. Movement does not trigger an episode. Onset of the disorder can vary from early childhood to early adulthood. [rarediseases.org]

Contarino MF, Foncke EM, Cath DC, Schuurman PR, Speelman JD, Thijssen MAJ: Effect of pallidal deep brain stimulation on psychiatric symptoms in myoclonus-dystonia syndrome due to E-sarcoglycan mutations. Arch Neurol 2011;68:1087-1088. [karger.com]

There was no axial muscle involvement, nor any oromandibular dystonia or facial grimacing. [neurologyindia.com]