I just think in words and concepts. Like if you say Shakespeare I think of plays and sonnets. If you ask me to draw Mickey Mouse, I know conceptually that he has big round ears and a swoopy nose. I could maybe draw a rough sketch. Drawing is very hard for me without a model of some sort though.
I dunno if I have the condition or what marks it. I never really looked into it. I'm fine as I am.
That's cool to think about how different people learn and remember things. As a kid, I remember a teacher talking about making a memory house and visualizing shelves and pictures in rooms. Students who less oriented towards visualizing things must have thought it was total bullshit!
My brain prefers daydreaming to perceiving. I can miss what's actually going on around me if I'm not careful, so keeping track of what's going on around me sometimes takes conscious effort. I also tended to have really terrifying nightmares when I was young because I would imagine scary shit in way too much detail.