5 month old lost weight

Hey ladies. I posted a while ago that my son was eating 35oz over 24 hours and basically got super judged on here and was told im over feeding my son and he should never go over 32oz of formula. Well here we are almost 2 months later after weaning him down to 32oz and he hasnt gained any weight and has actually lost a few oz... thats over 2 months. Hes only 5 months old. Im sorry but im going to increase my sons intake because he cant be losing weight. I even contacted my sons doctor and she said that every baby is different and has different needs. 32oz isnt set in stone. If your baby requires more its fine. And now i feel terrible because i feel like ive been underfeeding my son.