Having those sort of issues myself paired with fairly extreme visualization skills: My working hypothesis is that when automatic visual systems don't function right, the less-automatic brain may assert control giving much more access to those skills for conscious thought. Like I can't catch, but I can build anything in my head.
In testing, you might see lower scores in picture matching or find the difference type tasks, but very high scores in three dimensional rotation or counting hidden cubes in a structure tasks.
