I am back to work in my new role but am still having a lot of trouble focusing on complex issues or long complex conversations. I just "fade out" and absolutely cannot process what people are saying. When I try to respond, I hear my words as many times having nothing to do with the topic (even remotely) and have to try hard to shift into an answer that comes close to questions being put before me. I am better now in the mornings, but because I am trying to struggle through a whole day of work especially in a new job, I don't want to be perceived as weird or inappropriate. I also feel most comfortable with a closed door and quiet so have tried to manage by doing this for as much as is possible in the office environment. Does anyone have any ideas about how to handle this or when this will go away?