Formula feeding a hungry baby

Hey guys, so I’m a first time mummy to my gorgeous baby girl who is coming up to 1 month this Friday 🥳

She seems to be the hungry little baby ever, she is formula fed and on 4oz (as suggested for her age) but sometimes that’s enough and other times she will cry and cry for another full 4oz! This cannot be normal or good for her?

Sometimes she finishes the 2nd bottle quite happily and falls asleep waking 2 hours later for another 4oz bottle and other times she throws most of it up then wants more again!? We always pace feed !!!

We of course try burping/ cuddling/ giving her a dummy etc before giving her a 2nd bottle to make sure that’s definitely what she wants. I keep hearing “if your baby is hungry, feed them!” But I’m worried I’m over feeding her now? Any advice would be greatly appreciated!🤍