There was a incident on December 2016. That incident inflicted severe emotional pain. Now problem is still i am unable to forget that particular incident. There are some event or somethings which I on seeing triggers a sudden emotional reaction in me. I start crying, super quick exchanges of angry/emotional or revenge/guilty feeling. Then my body start tingling and my hand become uncontrollable and inflict damage to myself by hitting or scratching. My voice change between crying sad soft and rough angry retaliatory. Please help me before the situation become worse.