totally agree with you  in my case it’s the yelling that actually propelled my adhd after many therapy sessions i can see the roots of it my mom used to shout at time when i wasn’t doing something right that voice embedded into my mind and now it keeps sabotaging whatever i am doing i carry on through life and the voice changes depending on who i am clinging to sometimes it’s my ex wife sometimes it’s my mom and my in-laws  what i realised recently is that adhd could be a symptom of something as well it’s not necessary brain chemical misbalance but more a consequence of a prolonged trauma in my case