I first noticed this last night. I only get this on powder, btw, and I take 150-200 mg at a time. The last time I dosed was at 3:00 PM today, whic is about 9 hours ago. I'm completely sober right now, just I just noticed this when I was about to go to bed. My house is very dark. The only light on is a little lamp in my bedroom that slightly illuminates the living room. I walked out of the the computer room and stood in the doorway between the computer room and the kitchen. After a few seconds, I noticed the same thing I noticed last night while I was laying in bed with my eyes closed. Geometric patters started forming and moving around. That was with my eyes closed last night... now my eyes were open, but I was in near complete darkness. Then I noticed that everthing was waving and moving. Then I walked over to the living room, which was slightly illuminated by the light in the bedroom (yet still very dark). This is the trippiest part. If I moved my head forward very fast, it was like zooming in on a picture, and if I moved it back very fast, it was like zooming out... but it was delayed. Like I moved my head forward, and everything got bigger, but it was like my vision didn't actually change until half a second later. It was sooo trippy. I wouldn't really call it halucinating, though. It was just very distorted. Is this anything like any other halucinogen? I don't know if I described it very well. When my eyes were closed (or when I was in complete darkness), I saw geometric patterns moving around. When my eyes were open in near complete darkness, everything looks like it's moving and it's wavy and the walls move back and forth in an odd way that I can't describe.