shiro being afraid of physical contact that isn’t instigated by him
shiro flinching reflexively at loud sounds in otherwise quiet and calm environments
shiro sleeping in fits and starts
shiro waking himself up multiple times a night
shiro doing perimeter checks of the castles surrounding areas
shiro pushing himself to the very edge with his training
shiro having panic attacks in sterile medical facilities
shiro treating his arm like a weapon and ignoring its presence outside of combat, struggling through life using his one flesh arm.
shiro having breakdowns because some small but important thing broke down another one of his defences
shiro trying to deal with all the shit thats happened to him on his own and watching himself from the outside as he slowly falls apart piece by piece, not knowing how to stop it.