No, it is not Astral projection, although were this a Venn Diagram there would certainly be overlapping areas, much as adding in a Doppelganger too. The people know me intimately , interact with me, touching and talking , are convinced it is me. There was an instance when my father-in-law saw me walk into the kitchen in front of him, say Hello, turn right and vanish. I came downstairs about 10 minutes later. My husband had been telling him it was impossible but my father in law just would not have it, EVEN when we showed him many times that had I turned right I would have hit a slightly recessed Tumble Dryer and Dishwasher. I have got used to the 'Where did you go ?'.
Thank you so much for your help.