<<I wonder if it was some sort of past life thing. I would guess that I was somewhere in the UK in the dream but I had no sense of nationality. The guessing is just from the style of home, rather like a manor and the topography of the area.>>
That's what I meant basically. In my regressions I made observations as to dress/ashion, environment, landscape,climate etc, but I never experienced something like " Oh, I'm a Celt/German/Slav"etc.
Unlike you and your dream about the little girl, I did experience ageing in some regressions (when the 'trip' lasted long enough) .