This morning when I woke I was extremely dizzy and the room was whirling around. I had 4 such episodes in about 4 hrs. They only lasted about 5-10 seconds, but afterwards I still felt a little off. And, my vision was slightly blurred most of the day. This is a new condition for me. I am a pretty well person, exercise and eat reasonably well. Very concerned. I have had ringing in the ears for the last 10ish years. Your thoughts? Also, nauseated most of the day. Thanks.