Hello Tom,
Thank you for your answer.
I know it could be diagnosed as some kind of temporary Schizophrenic experience but she doesn't have any other symptoms associated with Schizophrenia and this is not a daily event, and it doesn't impact her normal life.
No we're not worried about it, as it happen only on occasion and never seem to be a problem or never seem to be evolving into something that would be worrisome. It's not getting more frequents or come during the day or anything, and is been happening for many years without any changes in its frequency (once or twice a month, at night time in bed).
Imo she's quite the undiagnosed dark knight yogi tho, growing up as a very deep child, questioning stuff that children shouldn't ponder, going through several insanely profound episodes of depression during her life and make it out of it all on her own.
She went deep during those times.
She can relate to carl jung, Khrisnamurty, Rupert Spira, alan watts types much better than her normal friends.
She's the brilliant, highly educated phd type that people naturally are drawn to, to ask advices about their life.
But even tho she is not the intense meditator going to retreats, she will describe the experience itself in a way that sound very much like when you describe your experiences (if that make any sense).
Anyway thank you for trying to help me out!

-p