My mom makes me feel like I am doing something wrong

Because my baby sleeps through the her, it isn’t normal. And I am just like he is gaining weight perfectly fine (almost 16lbs) he eats plenty during the day and his pediatrician has said that as long as he is gaining weight, pee & poo output are good, then I shouldn’t worry. But as a FTM, having her tell me these things makes me doubt myself, my parenting and my child’s health. It’s so overwhelming!