Alah, yang kuning berketul tu normal je for formula-fed babies, jangan risau! A few of my mum friends pun dulu worried gila, tapi paediatrician cakap formula milk akan produce tahi yang lebih padat dan kuning dari breastfed babies, it's the formula consistency je. Kalau dia okay je, active, minum well, dan weight gain bagus, boleh relax, tapi kalau worried or if dia nampak uncomfortable, better check dengan doctor just to be safe, sebab sometimes berketul2 bisa jadi timing of feeding atau memang dia belum adapt betul-betul lagi