It's common for someone with (C)PTSD to have emotional dysregulation and issues with expressing their emotions. I know I do. I've always struggled with expressing my emotions. When you're a child and you're told your emotions are bad, or are punished for expressing them, doesn't it make sense to have an issue with expressing yourself?
When I was a child I was told my emotions were bad, I was punished for expressing them, I mostly received negative reactions to them whether I was sad, angry, frustrated, or happy. This continued for many years, after childhood, but by my adolescence I had learned to suppress them. I had learnt suppression is a good thing, it keeps you safe. Unfortunately, when you bottle them up, the emotions would be let out in extremes. To the point where I would make others uncomfortable or scare them. I myself would be frightened of their intensity and my inability to get a grip on myself again.
I questioned, during my late adolescence and times of drawn-out emotional suppression, if I was a sociopath. I didn't understand then what was going on. Why didn't I have emotional responses like other people? Why wasn't I feeling anything at times? Emotions, to me, can be incredibly confusing. Most of the time I am questioning what I am feeling and the reaction I am having. I've become detached as a way to cope.