Ah, the joys of a smiley face.
I'm a mere peon, but I wouldn't discount stress as a factor. I get the impression growing up with so many tests done on your body to ensure your safety can be a bit overwhelming? Though, that's beside the point.... stress could just as well build over time, doesn't have to be one event. 😉 On the other hand, (again, peon typing here) sensory overload sounds plausible and worth looking into with EMDR The therapists I worked alongside last weekend always rave about the 🌈wonders🌈(^tm) of EMDR. Fuck... maybe it was something with brain-mapping... I'll have to look back.