Alright, guys. You know this has happend to everyone of you....I think. You stand up, take a GREAT big stretch, and it feels wonderful. But as you come out of a stretch, your world just starts closing in. Everything starts turning black and you can't see much; you also feel like fainting.
Well....that's at least what I feel. Anybody else do this?
What's going on? What causes it? And why does it happen?