Thats interesting, I have noticed moments where I feel I am flooded with serotonin similar to an MDMA rush.
I had not had these feeling until after heavy MDMA use.
It doesn't feel like I have been negatively effected by it but I can definitely notice something there that was not before.
It also seems that sometimes I can somewhat control the feeling.
One thing that contributed to my interest in this was that people are reporting that DMT space is entering mushroom or cannabis space after using DMT.
I have only noticed this one time when I had smoked some pot and it had a very DMTish feel to it.
I have limited DMT experience so I don't think it effects me as much as others here but I can see how it would.
'Little spider weaves a wispy web, stumblin' through the woods it catches to my head. She crawls behind my ear and whispers secrets. Dragonfly whiz by and sings now teach it.'