Flashback or Temporary Psychosis?

[dip]

Marijuana has always given SWIM a drastically powerful experience. Before acid (/any psychedelics) it gave insane laughter and absolute euphoria.

A few moderate, spaced-out trips, the marijuana began to give a strange feeling. The vasoconstriction, visuals, and all other psychedelic effects would last the entire experience.

After a period of chronic, heavy acid usage (last few trips were really lame), the marijuana would give a high just as powerful as acid itself. He would even have a bad trip on marijuana if used in the wrong envirornment! Months after ceased acid usage, cannabis still gives an equally strong experience.

How long does a marijuana-induced flashback usually last? The high is like a short acid trip. Onset. 0 - 10 mins. Coming Up. 5 - 10 mins. Plateau. 15 - 30 mins. Coming Down. 45 - 180 mins.
When the drug has worn off, SWIM is no more disoriented, dysfunctioned, ect. than when he had first smoked marijuana.

Now, to the point: Is this considered a flashback or a temporary state of psychosis?

SWIM has defianetly had a fair amount of sober flashbacks, but only last a few minuets, and a couple times up to 1 hour.