I’ve fainted once before and fell over backwards onto the ground. When I came to it was like a reboot of life. I saw leaves in gray up close near my eye and I t

I’ve fainted once before and fell over backwards onto the ground. When I came to it was like a reboot of life. I saw leaves in gray up close near my eye and I then flashed back into who I was and what I had been doing. It was as if a second before everything had been simply gone and it didn’t leave or go with any warning or flash, just nothingness and then life again. What happened is that I badly sprained my ankle and sat on a outdoor wall to recover. The blood rushed to my ankle and away from my head. When this happens the body’s response is to faint to get flat and allow blood to flow back to your brain.