Aiyoh tension kan, been there! Honestly a few of us tried the nipple shield route tapi the issue is actually dia sudah prefer direct breastfeeding, yang paling close kat actual breast feeling, so introducing a fake nipple might confuse him more instead of solving the bottle rejection. Better approach is patience lang, start with a warm bottle, try different teats (sometimes dia prefer softer ones), or let the caregiver try when he's calm, bukan when he's already cranky, tunggu dia naturally accept it, lagi cepat settle. One of my mum friends swear their kiddo finally took the bottle around 6-7 months when they stopped forcing it; sometimes it's just a phase dia akan outgrow.