What would cause panic screams like this

My parents are emotionally abusive and have been somewhat physically abusive but idt this is related.I have memories of myself as a child at home or out in public with my family, just standing and than my mouth would open wide and my eyes would stare straight ahead and is just a scream “AHHHHHHHHHHHHHHHH” for probably like ten minutes straight with no pauses. It was like I wasn’t even there and just screaming while standing completely still and looking ahead of me. I feel like when this would happen my parents would react by throwing me in the backyard or manhandling me. I have random memories of my mom jabbing me with a marker repeatedly and tackling me and than lightly banging my head into the floor repeatedly plus she’d rip off my clothes while I wore them- but this was when I wasn’t doing anything and was standing there calm- so the screaming issue wasn’t caused by that. I do have adhd-pi, had selective mutism as a little kid, and probably some anxiety via /r/JUSTNOFAMILY https://ift.tt/34ge0Ot