I can't remember any time where I blacked out completely, but I remember one time I was very close to it.
I was in school, and it was like 7th period when my stomach started hurting a lot. I hadn't eaten since lunch the day before, and it was so painful. I went to the nurse, but all she did was give me half frozen expired milk (which made me vomit and made my stomach hurt more). When 8th period ended, I left the school and sluggishly walked towards the bus stop. After waiting ~25 minutes, the bus finally came, and I got on. About 15 minutes along the ride, I lost my hearing almost completely, and my vision got totally weird. It's like my vision inverted, and then got totally bright, like this:
I was like that for about 10 minutes before my vision came back (luckily it came back right when the bus arrived at my stop). I didn't have my hearing though, so I got home (my house was like 2 blocks away), and as soon as the front door was shut, I ran to the kitchen and made myself a bowl of cereal. My hearing came back like 20 minutes after, but it was totally surreal.
