Why do I feel so violent?

Possible Reasons for Feelings of Violence

Experiences from your past can play a significant role in how you feel. Individuals who face traumatic, frightening, or highly stressful situations may develop post-traumatic stress disorder (PTSD), which can manifest as sudden and intense anger. Additionally, the use of certain substances, such as drugs and alcohol, can lead people to behave more aggressively than they normally would.