But what happened??? Now I'm curious! 😆

Also this. I would add that whether a person is born with or without an innate interoceptive sense, it can be learned to a fair extent through pattern recognition even when it is not directly felt and I have seen it to be a very useful thing for people to learn in support of their health.

Please keep us posted! The possibilities around that sort of treatment could be pretty amazing.

Could be simply being too busy, could be that someone was trained to ignore the sensations and "buck up," could be that they were told that wasn't what they were "really feeling," and a very common cause is trauma. Trauma often causes people to flee the body and move most awareness into the head.

You are not alone. It was not developed/learned or was actively repressed/disregarded/ignored for many people. You can learn to tap into that awareness and grow it. I spent 22 years teaching people to read their physiology. It can nearly always be done.

There may be some physiological differences in connection to the insula for autistic people, but besides any contribution from that, I'd say you are absolutely correct that this is a big reason that many people - autistic or not - have poor interoception. Thankfully it can typically be (re)learned.

Not that this necessarily means anything one way or the other for you, but I've known loads of people with super low (sometimes seemed nonexistent) interoceptive awareness that aren't on the spectrum. There are lots of reasons people can have low interoception.