Yes
PTSD has specific chronological requirements and symptom markers that must be satisfied in order to diagnose
After - as in POSTtraumatic stress disorder
tend to be more aggressive, angry, hostile, depressed, and have low self-esteem. Additionally, they exhibit fear, anxiety, and nightmares. Severe psychological problems may result in suicidal behavior or posttraumatic stress disorder
PDS is not a brain disorder, but an acronym for a test to screen for Posttramatic Stress Disorder, which is considered an anxiety disorder (so yes, it is a brain disorder) PDS stands for "Posttraumatic Stress Diagnostic Scale." At least, if you're referring to the same acronym I think you are.
Yes
Yes
Yes
Yes
Yes
Yes
PTSD/Posttraumatic stress disorder
PTSD/Posttraumatic stress disorder