I awoke this am with extreme dizziness and imbalance when arising, associated with nausea, some diarrhea and breaking into a cold sweat as I tried to walk around. All symptoms were relieved by laying down quietly. I slep for 5 hours then tried again, with same result, and some vomiting after trying to walk around. Again all symptoms were relieved with laying down. I slept 3 more hours, and finally have been able to get up and walk slowly without dizziness and nausea. I ate a small bowl of cereal and am sitting quietly. Still fell weak and slightly dizzy but much better. This has happened to me twice before over the last 6 months. Is it Benign Positionsl Vertigo?