So I've been fighting anxiety for about 8 years now, compounded with some pretty unpleasant experiences including having one of my friends die in front of me from heart failure and then having to personally ensure his incineration and bringing his remains home to his family. I've spent about 7 years of my adult life on military or private military missions overseas in third world countries. The last few months I have been getting a lot of dizziness/lightheadedness when I'm overseas, but almost none when I'm home with my wife. Just recently I was briefing something and the room started spinning and I had to close one eye to concentrate on the slides, this lasted about 90 seconds I think, then another 90 seconds of unsteadiness, after which the top of my head felt cold and achy. I'm just wondering if anyone else has ever experienced something like this?