Going to see a therapist

Recently I’ve been having a lot of panic attacks and I’ve been hyperventilating and I’ve been hyperventilating since I was 4 because my parents used to fight a lot of they’d punch each other and I’ve witnessed this. they don’t do it anymore but I can still picture this in my head and this is what gives me panic attacks so I wanted to go see a therapist because of it, but if I tell the therapist why this has been happening I feel like my parents would get in trouble.