Interesting, what makes you say that? Autism also typically comes with noise sensitivity and is about 100x more common than hEDS. Or were you suggesting that it may have a genetic basis in general (which would be useful to diagnose)? That makes sense.

It’s an example I’m more familiar with, but yes it’s a behavioral indication of a genetic condition. hEDS is massively under diagnosed (by at least an order of magnitude) and many with hEDS have ASD. Someone who is high functioning ASD has a much greater probability of having hEDS. Fewer people have heard of it and it is more treatable.