No Sawe you're not going crazy. Ive been seeing my T for six years. I can tell you what his bookshelves look like and that he has pictures of his family but other than that, don't ask me to describe anything in his room. I too kind of get the feeling of zoning in on the therapy and blanking everything else out except my T and his voice - everything else kind of blurs.
So join the club, you're not alone