I fainted about 10 minutes ago. I did a special kind of faint called Valsalva's Manoeuvre - look it up if you want a laugh. Im at home by myself but I think I was out for about 2 minutes. Ive done this twice before over the last 5 years. This time, Ive just brought all my breakfast back up about 5 minutes after the faint. I definitely hit my head when I went down. Is this sickness normal?