Actually, if a clinical psychologist and even sometimes certain psychiatrists don't know the clear red flags for ptsd or a patient presenting suffering from trauma they can misdiagnose that patient with cluster B traits. A trauma ptsd patient can also be misidiagnosed with bipolar when a professional decides hyper vigilant triggers are the same as mania. A "trauma" therapist who genuinely specializes in trauma can tell the difference.

So do people who suffer from ptsd. They definitely struggle with emotions. Often you can tell as often they experience crying when they don't want to cry. It's embarassing so they tend to withdraw from exposure to others and avoid talking about certain things.