Radiohead's song, 'How to Disappear Completely' sums it up. Especially in the chorus where he sings, ' I'm not here, this isn't happening'.

Thats how I feel; as if I am not real, not present in the situation around me. I 'disappear' and detach to try to cope with the intense anxiety or hopelessness. Sometimes I am so detached I forget where I am or who I am. It takes a small shock to bring me back to reality.

Other times (or at the same time) the world around me doesn't seem real, cartoon like even. This is very unsettling and makes it difficult to function, especially if I am at work. I feel out of my body, sounds and sights get intense. It is really unsettling.

Good luck with your appointment.