Can being bullied as a kid still affect you as an adult?

Of course. I’m hypervigilant at least in part (probably mostly) due to being bullied.

And migraines don’t run in my family, but I have them. I often wonder if they were induced by frequent head trauma when I was young. There is no way to answer that definitively of course, but I suspect they were caused by external factors rather than being congenital.

Being hit in the head a lot is not good for you.