Oh damn, I got dusted again..
Like the first time, it's my fault for buying a sack from someone I don't know well. I thought I'd have a bowl and hit the sack, but as soon as I put the lights out the room got bigger, little ghosts were coming out of my sheets, etc. Proper hallucinations and disassociations, thanks PCP!
I doubt it was just a flashback, it lasted for a long time and I couldn't "turn it off," but since it's already happened to me once I didn't freak--gonna smoke the rest of the sack today just so I can say I've had a real full-blown angel dust experience.
It's a bit of a pain to get a dusted bag though. =/