I also see shadow people, but I have schizoaffective. I see lots of things without meds. With meds, however, I see nothing at all. Without, I see them whether I am manic or depressed or psychotic or nothing at all. I used to see black shadows moving out the corner of my eye. Full on people made of shadow. Shadows that were like ghosts moving through the air. Dogs at the top of the stairs that weren't there. People standing behind me that when I turned around there was just a brief black shadow. Lots of black hallucinations, I guess. I've only seen a few hallucinations in color. One was a man in an orange-ish suit and spats from the 20's standing right beside me, like right up against me, and the other was a little victorian girl running through my house laughing and playing. But, yeah, mostly black shadows. I would definitely tell your pdoc about it.