Mental "Black out"

[Quarter]

This morning, I was in my bus. I was thinking about the girl that I really love. Anyways, I had this weird mental blackout. And I did not even know it. My friend who was right next to me told me that I was completely unresponsive.I thoughts maybe I was asleep but my eyes were open. So, is there a thought that is strong enough to completely make you unresponsive for a large amount of time (like 20-30 minutes)? I am not scared just intrigued. Any cases that might be comparable to this one?

[thefirstlady]

I've been there a few times. Once while driving. I knew I was driving and was driving just fine but couldn't remember how I got home from where I was. I didn't remember driving there and it was about a ten minute or so drive. It's happened a few other times. Usually happens at high stress/emotional times for me.

[Quarter]

Hmm, Interesting. But, this one was somewhat different, Judging by your example, you were still accepting outside stimuli (Seeing, touching, etc.) so you didn't crash while driving. My outside stimuli was blocked. Like I was sleeping, yet, only my mind is in that state. I guess this will be a weird case for me. Unless it happens again.

[thefirstlady]

Yeah, that's what I said/meant. I may have been driving but my conscious mind was "blacked out" as you say. I wasn't seeing things around me, hearing things, etc. I don't remember getting from point A to point B because I don't remember doing it. My subconscious may have been driving and doing those actions but I don't remember doing them. A semi-trance like state.

[Thirteen]

I'm thinking you were probably extremely zoned out. This happens. Hell, my boyfriend zones out, but his moments are usually only a few minutes tops, but it'll be impossible to grab his attention unless you physically touch him.

This "zoning out" thing is fairly normal, unless you happen to have neurological damage (like, have you ever had a big hit to the head?). But, to me, it sounds fairly normal.

[Quarter]

Ok, so has Thirteen stated, I probably zoned out. Hmm, still a very weird experience though. Anyway, would be weird if it happened again though now I have an idea of what it is.

[OMFG!You'reActuallySmart!]

I'm going to assume there is no neurological nor sensory impairments.
It sounds like you were so focused on the girl in your imagination, you became very relaxed and slipped into early phases of NREM sleep. Some people can do this in a planned way, whereby it is self-hypnosis because ultimately, hypnosis involves getting someone to relax so they'll slip into a semi-dream like state and are responsive but won't recall what happened. In your case, this self-hypnosis wasn't planned, so you were unresponsive to others.

It's not a cause for concern unless it begins happening quite frequent when you're not in deep thought or it occurs spontaneously.