My mom got angry with me about my grades and started yelling at me, while I just sat there. I usually just sit through it, but I've noticed that when I start to feel especially stressed in those situations I feel my brain turn off. Its like I get completely shut off from my emotions (I feel like I can't feel anything at all), my brain gets really foggy, and I can't think properly for a while afterwards. It also makes me feel extremely fatigued and tired. Sometimes the effects last for hours or 1-2 days after. Is this disassociation?

I am just wondering if this is something everyone deals with or if this is something I should to to a specialist about?