Visual Hallucinations

[HERBZILLA88]

i had some the other night fucming AWESOME

[BUZz UK]

From Wikipedia:

Hallucinogen persisting perception disorder (HPPD), is a temporary recurrence of disturbances in perception that are reminiscent to those experienced during one or more earlier intoxications with hallucinogens (often called Flashbacks).

But, this flashbacks are only a possibility. Probably there is a lot of people who did use a lot of hallucinogens and never had any.

flashbacks rarely occur more than a month after a trip.

I doubt there is anyone in the world that has developed HPPD after doing shrooms. LSD i can understand, but i had a blinding time on it to be honest, chged me for the better