I do also. Before I leave a room, I look at it, and when I return to that room I can tell if something has been moved or is out of place. I tend to stay on alert until I figure out what it is. I think that is a PTSD side effect, if you will. I've done that for as long as I can remember, but then, I didn't know I had PTSD back then, but several therapist have told me I must have from the early abuse.I have a big-capacity hard-drive in my head for details (of the kind you mentioned, like the things in a room).
It has been a life saver, literally, for me. Last year when that guy came into my apartment and rigged it to blow up, if I hadn't noticed things were moved, I'd have never noticed the other things like the black powder on my window sill, and bookcase, and television stand. Or that the screw was out of the wall socket where I always plug in my wheelchair at night. I"m grateful to the people that told me a guy had been asking about me over where I get my sandwiches, and another person told me that the screen had been opened from outside.
We have these symptoms as a protection. When I look at triggers in that light, I'm not afraid of them. But I am afraid of evil people and the things they do just to torment others.