My husband has been quivering, feeling nauseous, chilled, and weak. He injured his leg yesterday and was taking Vicodin over night for the pain. He seemed fine when he got up this am, but suddenly felt extremely nauseous, chilled and started shaking again. (He quivers all over his body occasionally on a regular basis.) He didn t eat breakfast (very unlike him) and has been lying down all morning but has not felt any better. He is 78 years old and in general good health other than a couple of conditions that are being treated.