Weird Blackout sensation

I have felt this before, yes. I remember experiencing that when I was in the sixth grade. Perhaps it's just one of those things. However, if it continues to happen, it would definitely be a good thing to get checked.

Another thing I should mention is that, this only happens when I stare blankly into the darkness, when I move my eyes, its just very dark haha, as it is.

well you see... i blackout too. but it doesnt only happen when i sdtare into darkness. i could be standing there and all of a sudden everything it black, and i only see a small light, thern i get dizzy and i fall. other times im sitting there and my mind goes black, when i finnaly snap out of it people tell me i was "spacing out" while doing something or saying something. i could just be on the bus going home and not have a clue where i am or what im doing.. but it doesnt matter cause i dont even think.. nothings working, its like im sitting there and i dont have a membrain.. anyhow i could be sitting on the but going home and all of a sudden nothing happening, but when i snap out people are telling me i was saying something i had no idea i was saying, i didnt even know i was moving.
does anyone know what this is.
PS. even when i do wake up from this i dont remember a thing. %-) %-)

I would like to tel u that even i had such black outs..where i would not rem wat was happening to me..it would be for a very short period of time..am i right?? but one time the duration was more..it went black out for more than 6 to 7 mintues and lost even my sensation ability to see and to hear..at that time i lost my balance and then i dont rem anyting..i consulted a doctorn and according to him i need to do some tests..so even if u r hving black outs..plz dont ignore it and show to a physicain as soon as possible..it might be something we dont know..so better..ok..