8m baby here.

Eh, 8 months 10kg tu boleh je normal, ada babies memang makan banyak especially kalau active! Tapi since you're worried about either side, best check dengan paediatrician at your next visit, dia tengok growth chart and confirm if berat tu sesuai dengan age dan height dia. A few of us mums went through the same worry, and honestly the doctor put our minds at ease dalam seconds je. In the meantime, sounds like you're feeding responsibly with solids and formula, jadi don't stress too much. If dia healthy, energetic, growing, biasanya semua okay je!