I haven't experienced anything like this for a long time, but I remember that 'disconnected' feeling well - especially in really hot weather. I recall that it felt like I had mentally 'turned inwards' and my brain was focused on getting me somewhere - I had no idea how I got from A to B - just as long as I did. I would pass people that I knew and have no awareness of them and I had tunnel vision and this strange self-protective haze around me.

I don't know if this is the same thing, but I do get what you are saying. I hope you can find some answers.

Regards

Lyn