I've been experiencing these perceptual distortions for years now & I only found out through this thread what it was called... I've never seen a full bodied visual hallucination, but I see sort of "silhouette clouds" of people's bodies along the walls or I misinterpret shadows that are already there as being something else. Frequently, I hear noises differently than someone else & from different directions EX: My boyfriend & I were sitting in the livingroom. I thought I heard that noise from "the Grudge" right up against my ear, meanwhile the actual noise was someone mowing their lawn downstairs. I live on the 17th floor. And also, I see the walls pulsating or rotating a lot. Sometimes this makes me, as a result, very dizzy & panicky. I'm just glad I'm not the only one...