I also have Alice in Wonderland Syndrome. Learning that AIWS was a real thing as an adult was shocking and then brought me a great deal of comfort, making me feel less insane.
Now learning about tachysensia i am equally shocked and comforted. It was always very scary when I experienced it as a child and would often happen specifically with my father, who was a difficult and often mentally abusive person. He was scary to begin with but sometimes his movements would become faster than a human should be able to move and he would be so much louder than anything else which made me so much more afraid.
I can’t believe this is a real thing. Absolutely amazing.