Aih, constipation kat anak memang bikin stress kan! Berapa umur dia? Kalau dia baru mula solid food, biasanya kena increase water intake and fibre, a few of my mum friends swear by adding more pureed vegetables, or kalau dah besar sikit, encourage minum air banyak-banyak and makanan tinggi fiber. Tapi sebab dia kembung and tak puas berak, better check with the doc first in case ada other things going on, okay, especially if this has been going on for a while. Hope it gets better soon, sayang!