High blood pressure and dumb brain.

A couple of days back I had some verbal fight with my family and My uncle threw book onto me and then Suddenly I got very anger on him and all of sudden My body was not in my control . I felt a fast heartbeat and my body got cool and my hand started shaking. I experienced a fast blood flow in my nerves.I even felt breathlessness for some time. I did not show my anger on him because he is elder to me and I tried to calm myself and It took me 3 hrs to get back to normal state . Even after getting normal also thats continuously running in my mind. I am unable to stop thinking about it. And every time when I think about it I am getting anger again and again. And from that time till now my brain was not active and it became so dumb and i am unable to concentrate on other things. Moreover due to covid pandemic i was so lonely in my home from the past one year . Hardly no interaction with friends . Is there any thing wrong with my health and mental condition or brain ? Kindly help me out.