Sayang, sebab prolonged jaundice, memang penting baby berak banyak, jadi please check with your pediatrician ASAP about the formula change and the straining sounds, especially since baby is only 17 days old. Meneran kuat bukan normal, boleh jadi feeding issue or formula doesn't suit baby's tummy. Doctor perlu assess properly, okay? Don't worry too much yet tapi jangan delay jugak!