There's some triggers I can control. I've fainted in the bathtub because of steam, so I'm careful not to have too much steam. I've fainted a few times while getting blood drawn, what works for me is when the person keeps talking to me and has my focus the whole time. I've fainted when there's too little oxygen in the room, so I just get out. I've fainted during flights, so I eat, drink, turn on the fan and point it to my head, make sure I'm not overheating if the sun hits me directly, go to the toilet, keep myself engaged. When I faint my eyes stay open, but my mind is just gone, last time I was out for one and a half minutes.