Im sorry to hear about your symptoms. It sounds like that you have been experiencing severe anxiety symptoms which are causing the worry, panic sensations as well as the symptoms which seem to be consistent with PTSD. When your brother yelled at you, it brought up all the bad memories from your attack a year ago and if you are having flashbacks that more or less confirms the diagnosis of PTSD. Now with this sort of issue, the first and foremost thing you should do is to seek therapy as soon as possible. If you are not already in therapy, you should start with it as soon as possible. Therapy would provide you with the tools to control these feelings of anxiety as well as prevent further attacks of PTSD in the future. Considering the intensity of the symptoms it is likely that you may need to be started on anti anxiety medications as well as anti depressants like SSRIs. SSRIs can act to control anxiety as well and it can also prevent further attacks as well.
But for now i would think you would need small doses of benzodiazepines in small doses. You should contact a psychiatrists as soon as possible because self harming is something which should not be ta***** *****ghtly.
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