Hi mama! Oo, totally normal yan, kapag binago mo ang formula, ang tummy ni baby needs time to adjust kaya medyo loose or watery ang poop for a few days to a week, wag mag-alala! Para sa transition, gradual lang ang best way, mix mo ng konti ang Nestogen sa Bonna para sa first few days (like 1/4 Nestogen, 3/4 Bonna), then slowly increase the Nestogen ratio every 2-3 days until pure Nestogen na siya, kaya mo yan! If the poop gets too watery or baby seems uncomfortable kahit after a week, or kung may ibang signs na off, better check with your pedia lang para sure. You're doing great, FTM mom!