the last couple mornings, my mother has been almost vibrating. Her body shakes, more like trembling I think. It doesn't look like a seizure or anything. Shes fine when she gets up, walks around, has breakfast.She has myoclonic jerks which she hates so perhaps that is whats happening. She usually gets them in left arm, left leg but can be bigger sometimes. Consultant said theres nothing you can do for jerks.