Yes I have these experiences, everything seems unfamiliar and odd to me including myself at times - like I have been transported to this strange body that I don't know. That is pretty much a constant in my life, but other times when I get really anxious, I switch off and have even got lost when out walking in familiar places.

I am working with a T and I hope that in time these experiences will reduce - from what I have read they are linked to anxiety, but I don't think there is an easy way of stopping them and it just takes time.