Has anyone ever passed out from fibro or something related to it? I've been having a flare of my symptoms, and Monday at work I stood up from my chair, took a step, and completely blacked out. No warning at all. On my way of falling to the floor, I smashed my forehead on a desk, my chin on the desk,the back of my head on another desk, then a cubicle wall, then smashed my back into the edge of a desk, finally smashing the back of my head again on the wheel of a chair. Needless to say, I don't remember ten minutes before the event at all. All my tests in the ER came back normal. I usually feel some kind of warning before I pass out, but this time I had nothing. Could it be related?