Aww mama, I haven't personally gone through this but a few of my mum friends ada babies dengan thyroid issues, the best thing is really to check with your baby's paediatrician or endocrinologist because setiap baby's situation lain, especially masa mula introduce solids. Usually mereka akan guide you on supplements and timing of meds vs food sebab some things boleh affect absorption. In the meantime, maybe join some Facebook groups untuk babies with CH, banyak Malaysian mums there share their experience and what worked for their kids. Jangan worry, kamu boleh manage this!