You could write them down and paraphrase them when you GM. I do that. Matt Mercer does that, and he is 42.My verbal descriptives also goes out the window. I spend a lot of time thinking how to describe something and when the time comes it just comes out wrong a lot of the time. Definately an age thing.
LOL!Fortunately my players are all my age, too, so they also suffer from CRS (Can't Remember Sh*t).
Early 40s. Sometimes I have to close my eyes to focus on a mental picture of a scene before I can describe it to my players.
And now I have to ask players to keep a map because I simply can't be bothered to re-explain the orientation of rooms and hallways anymore. I just use compass points for directions based on how they entered the location.
I noticed early on that some of my players couldn't visualize theatre of the mind combat. That is why we started using pennies for PCs and erasers as horses on a grid map. As kids in the 80s, we didn't have a name for it. It's good that you talk about it. The more people know about it, the better.I gather the first of this is new to you? Because I've had crud spatial memory and imagination for a very long time (maybe always), some it associated my aphantasia. Without some kind of map/display I couldn't keep track of people's positions and the layout of a situation on my best day.