Baby no.6 for me- have breastfed all my older children. However, this baby has just had a 2 week NICU admission and was fed via an NG tube. I was expressing since birth and he is now on a mix of expressed milk via a bottle and breastfeeding. However- he will feed off both sides and still want a bottle with anything from 60-90mls of breastmilk. And my boobs often feel engorged, even after nursing him. Is this normal while my supply adjusts? Expressing is completely new to me as the rest only ever breastfed. Any other hints/tips/advice.