Kelly,
Welcome to NeuroTalk.
Your anxiety and anger issues can easily cause the symptoms you are experiencing. Anxiety and anger can cause you to relapse into Post Concussion symptoms.
I urge you to seek professional help. Concussions can cause a weakness to having outbursts. Hormone and other chemical imbalances can cause this.
Adrenaline disorders and such can cause these issues.
There is a special field of medical care that can help. Do a search of doctors using the term 'life extension' or 'max performance' or 'bio-identical hormones' or 'optimal health.' If you cannot find a doctor, post your location and I can research to find some resources. You could check out
Request A Free Practitioner Referral - Women's International Pharmacy | Compounding Pharmacy | Bioidentical Hormone Therapy | Custom Prescriptions | Thyroid | BHRT | Some of the specialists in their database also work with men.
I assume you are a man because I've never heard of a woman punching walls.
I suggest you choose a screen name rather than use your real name. It is a safer to post online. The admins can change your screen name if you ask them. Although, I bet there are lots of Kelly Robersons.