It sounds like a kind of "normal" dissociation :-) Everyone dissociates to some degree or another; that's how we get "lost" in books when we're reading or drive to work and don't know how we got there, etc.

When I use to be the center of attention and get really anxious, I'd literally forget my name, nevermind being able to carry on a conversation or hear and reply to questions, etc. Your blurred faces and voices kind of reminds me of that. Stress and discomfort can do weird things to us. I'd certainly mention it to your pdoc on Wednesday. Do you have a therapist? Working on the stress and discomfort would probably help too. It sounds like just a symptom of stress at this time though, not a major factor on its own related to something else in your past?