The trauma that gave me PTSD involved my parents trying to destroy my career by threatening my life and yelling. I was abused too earlier.
Maybe ask your therapist. She would have the best idea. My therapist also understands that I have personalities, but I am stronger than them so present and have 'awareness' over them.
I found during a trauma and maybe a few weeks after personality shows up a lot after trauma in order to 'self soothe' the bad memories I think. For example feeling 'reminding myself of good memories of working with good people to soothe me' That personality feeling became damaged so the personalities came out of that. (Opposite extremely to the original feeling of 'good memories of soothing myself through work'
Also the personalites came out of my trauma of my dad yelling at me where I would swear "F Hell and go right of the deep end." I actually haven't gone into these states of swearing for a month now, so that has integrated" For two years, I was a sailor lol as these swearing personalites (my dad sweared during my trauma) processed out.
The worst it got was when I was processing my memories and for a brief moment while I was putting my year old son in his cot he was almost down I slammed him down. Luckily it was a mattress. This is totally opposite to my personality, I had never done this before. I have never ever done anything like this since. He didn't get hurt, I scared him, but it really scared me. The other personality of anger overcame me once. I have since processed it out, I am for 3 seconds a really bad parent, but for 3 years minus 3 seconds, mostly a really good one. So to answer your question, yes you can hurt people (in general) with dealing with trauma because it is stressful. I wouldn't know specifically with your topic area as mostly I have trouble with swearing.
It is best to ask your pschologist as she knows what you are capable of. I have issues a bit like this too, but it mostly comes from the pain of my mother abandoning me during my trauma. She chose my dad over me, and my brain just logically working out why. My psychologist said I would be a good mother that was my tick before I had children.