Self medicating with alcohol only makes any mental health issue worse. In fact it also makes a personality disorder even more toxic.
Alcohol abuse disorder affects the part of the brain that monitors ones own actions and how these actions and behaviors affect others. Alcoholics get good at faking that they care, but they don’t care and are just looking for a following or ways to draw attention to themselves. Individuals with ptsd don’t typically practice this. Instead it’s those that have an underlying personality disorder that are more attention seeking and are drama addicted.