So, first of all, I'm not sure how common it is but whenever I take LSA or LSH, my breathing becomes extremely superficial. LSH removes all of the bad sides of LSA, except this one. It feels like non-breathing is the normal state, and everytime I want to inhale or exhale, I need to mentally run a long corridor to get to the control center of my body and press the inhale/exhale button and then run back, on every single breath. And if I just stop running there, the longer I'm without breath the better it feels, and things start to get really visual. In that state I can easily have like 1 minute pauses between breaths (checked with a clock).

Normally that's fine, I don't really have a problem with all the mental running, but here's the newly discovered problem: At the peak of my last few LSH experiences things have gotten kinda hyperspatial and my consciousness has been wanting to separate from my body, with huge vibrations and sounds as if a colossally huge spaceship is being dragged across a metal surface.. You can't mistake the feeling. And I've had to really fight back to not let this happen, because I'm scared that I won't be able to consciously press the breathing button anymore if I separate from my body.

So what I'm asking is, does your automation take over if you're not in your body anymore, or is there a real danger of stopping breathing? I guess the only way anyone can answer that is if they have the same problem but they've successfully separated and returned.. But also other thoughts are welcome.. thanks.

I believe it's like sleep where the automatic functions take over...

Every time I smoke DMT on LSD I leave my body and I have had similar fears but I came to the conclusion that my body knows what to do when I'm gone away...

I agree, but replace LSD with Mushrooms (I've actually never tried LSD). Every, single time I dose on a psychedelic, I leave my body, or at least that's what it feels like. I really try never to speak in absolutes, I do not know with 100% certainty that that is exactly what I'm doing but it sure as hell feels that way.

Never had a problem returning to the body which is probably why DMT isn't lethal. There is also a lot of esoteric conversations dealing with a 'silver cord' which supposedly acts as a tether to your physical body. I've never seen it, but it makes sense that something like that would be there for these types of experiences to not have any sort of damaging physical effects.

I know the feeling you're speaking of. I've experienced it on a few different psychedelics, including LSA (never tried LSH). Although usually it was under pretty high doses. The first few times I experienced this I fought it all the way, out of genuine fear of stopping breathing after I "let go" and my consciousness separated from my body. I wanted to go forward (and even deeper) at times but I just couldn't allow myself. After a few times of this occurring I reminded myself that I was far from the first person to ever experiment with doses this high, and I had never heard of anyone dying or suffering brain damage due to oxygen deprivation or anything of the like.

Although that's the logical way of thinking about it, it was still frightening to me and honestly the only way I got over it was by dosing so high that it didn't matter if I fought it anymore. Basically upping the dose to the point where I had no control over wether or not I left my body anymore. It was going to happen. This was pretty frightening at the time and is definitely more of a trial by fire way of doing things, but after it happened the fear was so much easier to manage every subsequent time I dosed.

I've actually had OBE's (one specifically comes to mind) where I was hovering above my body and watching myself stop inhaling and exhaling for quite some time and actually wondered if I was dead. Our bodies are very resilient though. Once it gets to a certain point of oxygen deprivation it's like something throws it into auto-pilot while you're gone and you will inhale/exhale. I compare it to times where people are completely unconscious but still breathing. Most of the time when your body is completely unconscious you are totally unaware of your surroundings or even your body but you still breathe. I've been in this situation in an ambulance or the hospital many times.

I know this is not related whatsoever, but I've also nearly drowned once. I held my breathe a really long time but eventually my body forced a breathe, even though I was still far under water and knew better logically than to take that breathe. I had no choice and it wouldn't have mattered where my body/mind/spirit would have been. After that long without air I was going to inhale no matter what.

To answer in short...yes I have experienced the feeling and the fear many times, had my consciousness separate from my body, and have come back fine every time. I'd be extremely surprised to hear of a different outcome under the same circumstances (ie: no extra CNS depressants/Alcohol in the mix).