Actually,My Father was a victim of addiction of alcohol.He used to create voilence physically and mentally to my family.Lot of actions taken against him but all at end ,he begged to come back to him.At last incident ,he requested now i will never do physical voilence and will stop drinking. Though he left drinking but at periodic intervals, the devil side of him,beating,abusing,recalling the past events is seen and again my family goes in same situation.I want to know type of mental disorder?