I'm not sure if I get this exactly but I've definitely noticed my spacial awareness has decreased when I've been hyperfocussing.

I also forget why I've gone somewhere by the time I've arrived because I've been thinking about something else on the way. I have to run through the top level mental list of my priorities and see whether any of them could involve that place. If not I try and find something useful to do there anyway, so it's not a wasted trip.

And having to rewind videos/podcasts by several minutes searching for the moment I tuned out and started thinking about something else....

And in the same day I can start another task, blink, and it's sunset and I haven't eaten lunch.

More often what will happen to me: I'm a wheelchair user and I spend most of my day at my desk. Sometimes I'll think - I'm hungry or thirsty - I'll get something after I finish this.

Then the relevant thing that happens: Some time later, I'll unlock my chair and start to head for the kitchen - and be like - why am I going to the kitchen? ......Oh yeah, I was hungry/thirsty.

I didn't make a conscious decision to go get anything, but apprently I made an unconscious one that led to physical action.

It's almost like the subconscious brain does have some control over the body. Almost scary. heh.

Yes, its crazy

Mine doesn't usually do that. Mostly I just lose time. But hyper focus for me is usually something very small and unlikely to involve much movement. Or maybe just the types of activities I tend to do don't involve moving around the house while on a single focus. But that's just my brand of ND probably. I don't do autopilot like that. Could also be because of the Autism blended in there.

I have to consciously initiate any real physical movement, which will always require main focus even if for a second. No habits, no muscle memory/autopilot, almost everything requires executive function, just that often other things get unconsciously ignored even when I acknowledge them verbally. A lot of verbal stuff I guess can end up autopiloted, though, or at least my brain fails to record in my memory that I heard or acknowledged it, but only simple acknowledgements like "yes/no/OK".