Sounds like association anxiety to me. I do it all the time, for illogical reasons, but since you actually poisoned yourself with acetone before, it's not illogical. Nevertheless, I think you're fine. You said the room is well ventilated, so i don't see why the smell would make you ill. take deep breaths(not in that room)

Also, they make non-acetone nail polish remover it still stinks though, lol