You may not be alone with that feeling.
I've read several articles about people who got lost, and everyone wonders why they just didn't stop. But in one article, the guy admitted that he "just panicked and kept on moving".
And I think that would be a good explanation why people don't stop moving. Maybe something like "running away from being lost". Kind of wacky, but it feels like it would make sense.
I really is hard to be alone these days, even when you want to be. I guess when really are alone, it can give you the heebiejeebies when you're not used to it, or think about it too much.
Sue