not to revive an old thread, but I think I do have HPPD.
To catalogue the entire realm of entheogens that I've done;
-Psilocybin Mushrooms: 10+ times
-Lysergic Acid Diethylamide: 2 times
-2C-E: 3 times
-2C-B: 1 time
The last entheogen I've done was LSD, but I had a shitty hit so I didn't get much off of it (and I got drunk and high on the come-up, so that REALLY fucked it up, plus other variables. I was told not to eat the blotter but to suck on it for about a minute or so, and I did, then spit it out. Needless to say, a waste of $100 on 5 hits... I ate one, gave my boy two, and two of my other friends a piece each). But, the effects I've noticed since the last time I did 2C-E (March '08) was that my mind thought in severely different ways... Life seems more dull, more depressing. People seem like peasants, most not even worth uttering a breath towards. I still get tracers from time to time, and sometimes stationary flashbacks reminiscent of the times I've done acid and 2C-E. 2C-B did basically nothing for me. Mushrooms haven't brought about any of the symptoms.
Also, when I stay up real late, almost to the point of a day, I start hallucinating. It's never been like that, as I've stayed up for 3 days at a time before I started tripping with no hallucinations. Things will move closer, move back, then stop. If I'm looking at the computer screen, sometimes it will stretch vertically before resuming its normal size. Weird?