Ay anak ko naman, normal lang yan sa ganitong edad lalo na kung mix feeding kayo, a few of us moms experienced the same with formula, mas matigas talaga compared sa breastmilk lang! Try increasing water intake (pwede through breastfeeding or a bit in a sippy cup), and prunes or pear juice really helped sa amin, pero since he's still very young, best to check with your pedia kung okay lang for his age to give anything solid pa. Fingers crossed maayos agad!