Was this a near death experience or just being unconscious?

So as a kid (must be around 6 years old) I fell down our stairs to the attic.

I tried to grip onto the ledge above me, but that just game me some fast momentum, like some ape swinging around and then I slammed against the wall in front of the stairs, then I hit the ground.

When I was laying on the ground, I couldn't move and within 5 seconds the edges of my vision became dark and like in old movies in the end, the "circle of vision" became smaller and smaller. On the edge of the circle were 4 colors, each one filling a quarter of the edge. Red, green blue and yellow. Kinda like the windows logo.

I thought to myself "I'm tired. I'll sleep." And when the circle "consumed" all my vision I closed my eyes.

I remember my parents panicking and like seeing me on my bed laying from some sort of third person perspective. (They took me on the bed). I thought "why are they shouting? What is happening?" Then I woke up, sat up and asked them "what's wrong? I did just sleep" and went on the rocking horse I had back then. I remember them accusing each other who's fault it was etc while I was basically still gone.

I don't know anymore if my parents did go to the hospital with me or not. In fact I have almost no memory of my childhood, only about certain events. The loss of memory could also be caused due to ALL and/or the chemotherapy I had earlier as a kid, but I don't know that for sure.

What exactly was that?