Definitely go to a dr! You need to make certain there is not a physical reason for this aggresive behavior - i.e. brain tumor? (sorry to freak you out!) At that time ask your dr for a referral to a psy dr! That dr can help you with the mental stuff that is not working right. I did & it helped me alot! No more aggressiveness from me. I still get angry at things, but I don't attack. Good luck!
Get to a dr and talk with them about all of this before something happens that you pay for the rest of your life. Don't mess around with this!