My aunt is 74, yesterday she had a very sudden onset of dizziness/faintness, followed by a single episode of diarrhea/vomiting, followed by fever/sweats, then chills. Afterward, she slept for several hours, got up to get a drink, (Vernor s; we re from Mich.), went back to bed, and slept for another 12 hours. Today, she feels fine. She takes no prescription meds, had been feeling fine.