About 3-4 wks ago I suddenly awoke middle of the night with a spinning sensation and impending nausea (didn t throw up). I sat up immediately, it was almost like something woke me and told me to sit up immediately to keep from passing out, and just like that it went away. Best I recall I lay back down and went to sleep for the rest of the night. Since then I have had periodic vertigo, dizziness, blurred vision, dry mouth and thirst. Other than that I ve been normal, have maintained routine vigorous exercise routine w/no issues. No perceived cognative issues, speech and hearing fine, rare instances of anxiety perhaps a bit more than historically. ?