Based on my own experience, I can say that yes, it happens. And not only after psychoactive substances, but also after fainting, for example. Once there was a situation when I was terribly lost in time space. I was absolutely sure that I had spent two days in the place where I was. In fact, three hours have passed.
Lead a healthy lifestyle and do not abuse anything, so as not to fall into such embarrassment.
From my own experience, I can say that it definitely happens that you live in your head much more time than in essence has passed. When I was on LSD, I lived in my head for 10 hours, although in general only an hour passed (I set a timer after accepting the brand especially for the purity of the experiment and control over the situation). There are suspicions that everything depends entirely on how "deeply" you think about everything. With a strong desire, I think that you can survive no more than a day or, well, a very narrow life (in separate episodes). Depends solely on your imagination and thoughts.
Psilocybin works wonders. Like LSD, 2SB, etc. As for 2sv, I myself had this. And with everything, in fact. It's just that the degree is different. But I had a similar situation with Siberia.
It even happens that he has lived a whole life, and in the opposite direction - from today to back to the womb.
More often it happens: during his state under the influence of hallucinogens, a person receives so many new experiences and emotions, how much he did not receive in his entire previous life. Then, upon exiting the state, emotionally, there really will be a feeling that during this time he lived several new lives.