I totally have...I forget what the term for it is, but Gene Weingartern of the Washington Post has it , too--the thing where you are bad at recognizing and remembering faces. It's possible your therapist has this. Or that he just didn't know what to say to you (though he still could have given you a nod or wave or something). Hopefully he'll agree to your April appt., and you can address it with him then.