Originally Posted by
storyseeker1
Found it! The condition is called Intermittent Explosive Disorder (IED), a behavioral disorder characterized by explosive outbursts of anger/rage. Aggressive acts are frequently reported accompanied by a sensation of relief and in some cases pleasure, but often followed by later remorse.
Seems I was wrong about the amnesia part. As I said, it says people with this condition feel remorse and such afterwards. Though I suppose there are people who after experiencing true remorse might block the memories of the incident.