Interesting. I am fairly sure that I suffer from aphantasia. Not quite to the degree where I can't make mental images at all, but still to a fairly large degree. I simply don't think in mental images at all, and I have a hard time trying to think up images.
I don't try to convert book scenes into mental images, or any of those weird things most of you do.
Interesting enough, I actually have a very good memory, and can e.g. remember where people put their things, even when they cannot.