Got my brain whirling that one Bee. Never heard of it but then thought, ah, it’s big sister/little brother to Palinopsia and … my take for all it’s worth … try this one …
The akinetopsia often occurs with visual trailing (palinopsia ), with afterimages being left at each frame of the motion. It is caused by prescription drugs, hallucinogen persisting perception disorder (HPPD), and persistent aura without infarction.
Words jump out at me there, “Prescription drugs” … could it be the Pizotifen causing it I wonder? Can you plot a timeline?
Another word, somewhere, I liked was ‘perception’. Could well be your akinetopsia is just part of your brain’s very individual reaction to VM. We see what the brain perceives and it’s currently under too much pressure to function totally correctly.
https://mooreperceptionproject.weebly.com/physiology.html#
https://en.wikipedia.org/wiki/Akinetopsia
after very quick scan read somewhere in the above antidepressants are listed as possible culprits … and hey hoo Pizotifen is 50% tricyclics AD. So there’s a question to be asked.
Btw to say I am impressed with the observational skills and abilities of your VRT body would be understatement of the year. It seems in some parts of the world they really do seem to know their stuff.