Yeah I’ve absolutely no issue whatsoever with people imagining, believing, seeing, feeling things even if it’s their own mind creating these things for them, if it helps them.
I think there’s an odd obsession with sharing everything that feels uncomfortable. But it might be that she worries that if she stops, everyone will forget her daughter. Additionally so much of her own identity and purpose quickly became about being a sick girl’s mother. That sick girl is no longer here and no longer needs her, so perhaps it’s this unhealthy need to keep her present, and keep her own self in the past that is behind a lot of this.