I used to have very vivid nightmares similar to the one you had of your childhood friend. Extremely violent, extremely vivid stuff, especially common when I was

I used to have very vivid nightmares similar to the one you had of your childhood friend. Extremely violent, extremely vivid stuff, especially common when I was a child/teenager. I didn't have an easy life, but nothing really violently traumatic , just the usual fights with my brothers, and the YMCA pickup basketball fights. I'm just glad I'm not the only one. The violent nightmares actually started to resurface in my early 20s, when I was actively training Muay Thai, but I was also binge drinking- I cut both of those activities- Muay Thai due to headaches, drinking alcohol, just because I stopped enjoying it. I suspect that there's some aspect of physical head trauma that puts our brain into a subconscious fight or flight mode when we dream.