Ok, i am 15 turning 16 and i have started having this blackout problem which started a few month's ago. If i stand up or sitdown or move really, i will sometimes have a 5-15 second blackout where i loose all my senses and if im standing have to hold on to something to avoid falling over, which doesn't always work, and i end up falling straight backwards. They happen around 5-10 times a week. And im really getting sick of them, becuase it'll look really strange if i just fall over backwards in front of people. But some things that i find have helped are when i feel them coming, i sit down and they aren't as bad, but i still loose my vision, and all my senses go. Also they are really bad if i wake up and go have a shower, i will have to quickly sit down, or i will almost always fall down. It also could be the heat, but i highly doubt it cause it usually happens in my basement up here in Canada. If thats any help. So if anyone could help me or point me in the right direction cause i am so lost!:confused: I will check back and reply to anyone who posts. Hope you can help.