Aw sis, normal lang yan especially around 4-6 months when babies start getting interested sa solid foods, pero mas importante na i-check mo talaga with your pedia kung gaano katagal na siya ayaw mag-feed at kung bumababa yung weight niya. A few of us moms noticed din na sometimes babies go through phases where they're less interested sa milk, pero if it's sudden or prolonged, better safe than sorry talaga, your doctor can check kung may underlying reason or if baby is just transitioning normally!