Hello Mihnea, I wonder if the effect is a result of lowered glutamate levels after intake. High glutamate levels can be a cause of dementia, but I sometimes wonder if slightly higher levels of glutamate in the brain could lead to aphantasia related disorders as well. https://www.beckleyfoundation.org/ayahuasca-and-glutamate/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5791143/
I am very glad that there are others like me out there. I can totally relate to all you said. To me, this aphantasia condition or whatever this is feels like a prison, I can never get out of. It ruined my entire life. School, highschool, friendships, finding my way - it was all so difficult and exhausting because of all the extra hours I had to do after school to memorize things, write them down in small bits. And the worst, nobody ever believed me. They even said I was lazy... Can you imagine that?