Flashbacks, can be triggered by sounds, smells, feelings, or images where the person relives the traumatic event and may completely lose touch with reality, for minutes or hours at a time.
PTSD has specific chronological requirements and symptom markers that must be satisfied in order to diagnose
After - as in 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
Yes
Yes
PTSD/Posttraumatic stress disorder