When you have childhood trauma in your life, you most likely had many feelings. Of course it wasn’t safe to express those feelings. So most of us just held them inside.
Anger is an OK emotion to have. It is a guide that something is amiss in your life and needs your attention. Children of trauma experience feelings. However they are dismissed and not validated by the adults in charge. It is so bad that the child dismisses them but they can’t get rid of the emotion. It just gets stuffed. And stuffed. And stuffed… and so on. You get my drift.