Thanks for your reply. I had a brief look at your blog and look forward to exploring it more.

Just to clarify, if I'm lying in bed with my eyes closed, thinking about the day or about some problem or event, then out of nowhere I'm "watching" someone driving a digger... or I'm having a nonsensical conversation with someone... or I'm just "watching" some scene briefly... then realise I'm still awake and the scene disappears and then is replaced by another... what is that?

I have even talked to a partner after one of these "episodes"... lol... for example (this is just an example because I can't remember a specific event):

I might be watching someone baking a cake and I'll say to my partner "I prefer chocolate, not banana"... and my own voice "wakes" me up and my partner says "what did you say?" and I mumble a laugh and say "nothing" and realise I am mixed up in a dream while still awake.