I get like that when my blood pressure drops very low, but I have abnormally low blood pressure unless I take insane amounts of salt to counterbalance that.

Next time it happens, try tensing your abs. That will raise your blood pressure, and if it counteracts your blurring out, then it might be a blood pressure issue, instead of some sort of traumatic brain injury, like you're afraid of.

You might be describing orthostatic hypotension. Does it occur when you move after a long period of staying still?

Have you asked a doc about it? Might be worth looking into because it could be a symptom of something.

yeah, it's caused by not enough blood/oxygen going to your brain.

i have blacked out a few times in my life, that's exactly what happens before you black out and lose consciousness entirely. it's a sudden loss of blood pressure. it's dangerous and a sign something is wrong.

in my case it was heat stroke. in another it was extremely low blood sugar after an adrenaline spike.

Yeah, as a kid I could do this. Not necessarily on command, but if I zoned out for long enough.

On the contrary, I've also had this thing where if I'm too stimulated, it feels like my brain is going in slow motion. Like life gets cut to 15 FPS. Not visually, but mentally. That one hasn't happened in a few years. I always described it like hitting my RAM limit in my brain and shit just had no where to process.

Yes, at least that describes the feeling when I start dozing off while listening to a certain way of speaking. Basically a flat affect droning delivery like the "Bueller...bueller" scene from Ferris Bueller's Day Off.

Like putting my brain into standby mode, not completely asleep but halfway there.

I have had that happen when super tired. Maybe too drunk or after having been awake for more than 30 hours straight. Only maybe once out of nowhere, and I could just focus through it and it went away.

That kinda sounds like meditation to me.

Assuming you mean mental/sensory blurring and not the thing you get from exhaustion or low sugar or blood pressure:

Yeah, and I think it is linked to meditation and all that shit. As a kid, I used to blur out the voices in a packed bus to pass the time and calm down, for example. Fun little exercise.

I had very similar experiences with psychedelic drugs, and while I am not really into medidation, I occasionally use it as a sort of starting point to, I guess, do a bit of a mental break. First I let the eyes "relax", then if I'm lucky, the ears and then the brain. If you do that for more than a few minutes, you can end up in some funny mental places.