TripleGemStudent wrote:
“Just wondering if anyone have come across or heard of any Buddhist monks that experienced adverse side effects of practicing incorrect meditation techniques?”
There is a book about the Buddhist master Dipa Ma:
Dipa Ma
The Life and Legacy of a Buddhist Master
— by Amy Schmidt
In that book, there’s mention of a Vietnamese monk named Khippapanno who attended a retreat in Burma in 1969. For 5 days he couldn’t stop laughing or screaming; he then left the retreat, but Dipa Ma invited him to meditate with her, and got him “out” of his predicament.