You described several symptoms, which might be consistent with antisocial personality disorder, including: hurting animals (unlawful behavior), lacking empathy, impulsivity, and aggressiveness. To determine the most accurate diagnosis, you should seek a second or a third opinion. It’s impossible to provide a diagnosis over the Internet.
Persons with antisocial personality disorder, have at least three of the following diagnostic criteria: engaged in unlawful behavior, deceitfulness, impulsivity, irritability and aggressiveness, reckless disregard for safety, consistent irresponsibility, and lack of remorse.
You may not think that hurting animals is a big deal but modern cultures, including the American culture, have deemed it as illegal, punishable by fines or jail time. Not only is it illegal, but according to the Federal Bureau of Investigation, it is a “crime against humanity.” If you continue to hurt animals, you might face severe penalties, including jail time.
You seem to be focused on a diagnosis but your goal should be treating your symptoms. They are undoubtedly negatively impacting your life and perhaps the lives of others, especially if your behavior would lead to your involvement in the criminal justice system. If you want to change, counseling could be quite powerful for you. I hope you will consider it. Please take care.
Dr. Kristina Randle