Full-blown hallucinations are pretty rare for me. More commonly the world just doesn't look right or real, the outlines of everything are somehow sharp, like trees look jacked up to me, and colors are off and/or very vivid. Less commonly things pulsate or move, so I will see things like shadow people, or the rug moving towards me across the floor. When I do have a full-on hallucination, it's very brief, like a ghost cat that disappears when I turn to focus on it, or someone walking down the hallway that won't be there when I come out of my room to check. The rarest type of visual of all is weird vortex stuff going on in the sky. Audio hallucinations are the absolute rarest for me, and tend to be brief and random.