The hEDS diagnosis also answers something I'd wondered for a while: "How did my teeth go from 'fine, very well aligned' to 'cross-bite and end to end' seemingly out of nowhere? The grinding from sleep apnea before I got a CPAP should have worn them down more if it was hard enough to push them this far out of alignment…

…unless the ligaments holding them in alignment just weren't very good at holding things.