Before depression and anxiety really took hold i was able to memorize things easily and everything i saw, i could recall in my mind (and still can sometimes to be honest) where people were stood, their expression, where things were in the room and so on and see it as one would a photograph.
Weirdly, i can also see in my mind like a 'tour' my way around a home after i visited if i happen to pay more than passing attention. Although its much more vague than it used to be. Prior to my anxiety took hold, i could almost accurately remember the placing of objects such as a used cup, a vase, the remote control, where there was a blemish on the wall and so on and see that in my mind (blemishes on the wall would have to be after a few visits). I think sometimes my head 'filled the rest in' with generic stuff to make the image seem complete so it wasn't 100% accurate.
Smells, Songs and so on used to trigger memories or even just feelings that i could relate to when i first heard that song. An intense form of nostalgia.
As 'useful' as all this seemed, it took its toll on me i think. My mind was working in overdrive most times while i tried to make sense of all i had took in.
Another strange thing, when remembering spellings of words i could see them in my head..