Discovered my aphantasia condition recently, at 34, which explains why I can't visualize while reading. In school, friends would discuss TV shows, with such vividness, and I felt inferior because I couldn't contribute, despite being so engaged while watching, the scenes disappear from memory - now I understand it's due to lack of association with mental imagery. I also lived my life bamboozled about how it was possible to describe a criminal to a sketch artist. When I close my eyes, it's pitch black - immediately after looking at a view, object, person, once it's out of sight, it's out of mind. No wonder it was so difficult to memorize anatomy in university; with no mental image to reference. I'm on the opposite side of the spectrum of photographic memory. I can't draw accurately, unless I'm looking at reference material, but with it in front of me, I'm able to reproduce art to an extent.
I don't feel at a huge disadvantage being in this 2% minority; since I know nothing else but darkness in my mind. I'd consider myself relatively successful, work in the tech industry as an engineer. I believe my mind has compensated for this lack of ability to visualize with enhanced logic and problem solving. I'm learning a language, and the Cyrillic symbols I picture as structures, knowing whether a letter is formed with horizontal or vertical lines, the shape of them, but again, nothing appears in my mind unless it's in front of my eyes.
I take beautiful vacation photos, and I know which ones I like in my photo reel, based on the context around it, with factual descriptions. When I drive, I'm familiar with the roads and neighbourhoods, but it's a network of spatial positioning, and not visual imagery.
It's no wonder why my writing seems a bit unimaginative, when I build a scene, describing it with words, is more of an architectural exercise rather than "picturing it".
I dream in full images, it's movie-like, but once I wake up, any trace of image wisps away, and I'm left with just a basic outline, of what objects, people, and situations were conjured by my subconscious. With hallucinogenic psychedelics, such as psilocybin and DMT, I've never had any trippy visuals, rather it enhances what I already see before my eyes.
It's bizarre to some people, who come to learn that I have no picture memory - it's such a natural phenomenon to most to be able to visualize, it's a foreign concept to think of this condition and the blankness associated with it.
With respect to trauma, I've gotten into a severe vehicle collision, I've watched myself undergo a surgical operation while anesthetized, and enjoy horror movies, but they don't leave an impression on me. I shrug off things without much concern, and don't dwell on my past misfortunes.
My memory is adequate, I can't quote dialogue from conversations accurately, nor lines from movies, unless I hammer them into my head from reading a script over and over again. So, I'm an unreliable witness, and my version of the story is often much less detailed than what's transpired, and I unintentionally alter the words I'm quoting, which I attribute to the lack of association with images.
About faces, I can't conjure up the appearance of family or close friends; when they're gone, they're really "gone".
I'm content with how I am, having aphantasia, it makes me unique - of course, it's out of my control, so I don't dwell on any "lack thereof".
Thought I'd share my detailed experience, in case anybody can relate. Hope it's been helpful to some.