Look up aphantasia, it's when someone has no visuals in their head whatsoever, they tend to think more in concepts and words but never anything visual. And most people fit somewhere inbetween the two extremes (but it's still surprisingly common for someone to have aphantasia, they just don't realize it).

Funnily enough your daydreaming seem a little more advanced than mine, I typically struggle to imagine smells, but that might be link to just having a bad nose overall.