Wa'alaikumassalam, sayang! I can feel how worried you are, and it's totally understandable, you're being such a caring mama. Hernia boleh jadi salah satu faktor yang buat baby kurang selera or uncomfortable during feeding, especially kalau ada bloating or tenderness, jadi memang kena check dengan paediatrician untuk pastikan, doctor dapat examine and confirm if the hernia is affecting his milk intake or comfort. A few of my mum friends ada babies dengan feeding struggles, and when there's a medical condition in the picture macam hernia ni, it really does need professional eyes because it bukan just about "refuses milk" tapi ada underlying reason yang mungkin causing him discomfort. The fact that he's more interested in play than feeding, plus the slow weight gain (especially dengan hernia condition), definitely warrants a chat with your paediatrician atau even a specialist to rule out pain or digestive issues related to the hernia. Don't wait until the 5-month check, call the clinic sooner, terangkan the feeding refusal and weight gain concern, okay? You're doing great by being so alert to his patterns.