I’m a little strange…

So when I was born, I had galactosemia. You know, don’t drink milk or else your baby will die, the whole spiel was told to my mother. And I am not kidding when I say she fed me breast milk, I survived, and the entire effect of galactosemia went away. I’m most likely not cured since there is no cure for such a disease as far as I know, but I’m effectively free of it. No food restrictions, I’m perfectly normal aside from a cleft lip/palate, and a vitamin D deficiency. Can anyone tell me what exactly happened? I am super lucky and my mom attributed it to God as she is a religious woman, but I’d love to know the science behind it if anyone can tell me.