when i was experiencing psychosis, i think i just felt un-real or un noticed. Maybe a cry for help.

But, your problem, i read one of those self help books a while back and there was a story about a midwife who had visions of herself throwing a baby out of the window while she worked. So it may not have a direct meaning like we can do to dreams. I don't know how she managed to overcome this, i think it was called a "neurotic" thought process, and the therapist who wrote the book talked her through it