I don’t know if this is just me but this is what causes my nightmares and flashbacks and intrusive thoughts and mood swings 

 Betrayal is a big one 
Abandonment 
Rejection 
Yelling or arguing at me 
Not being in control 
Feeling trapped 
Being touched 
Being ignored 
Feeling invalidated 
Medical stuff (from medical trauma) 
Freind breakups 
Beeping,sanitizer
Reading something about my trauma 
Hair getting cut or watching someone head getting shaved that’s why I always have long hair ( bc when I was a kid for a surgical procedure I had to get my head shaved it felt humiliated)
Hair color 
Someone making me feel ashamed 
Being controlled /feeling being controlled 
Humiliation 
Fear of being controlled 
Fear if authority 

When I was bullied and humiliated also in high school I got a lot if flash backs I don’t know why they weren’t connected to my medical trauma at all?