Are you in therapy? No matter what your diagnosis is, therapy will help, especially with your reactions to triggers.

So far the symptoms you described are present in many different mental disorders. I suggest trying to get your sleep routine right, that will make a difference to your life and moods. Melatonin was helpful for me to get back into the sleeping at night routine. I cannot stress enough how important it is to sleep right long term, a bad sleep pattern could easily be causing all of your symptoms.