Mapait ang enfamil gentlease. what else can we try?

Right now, si baby po ay naka enfamil gentlease. Napansin namin na super iritable sya whenever he's fed. Nung tinikman namin, mapait pala. No wonder he was very uncomfortable. Mga moms na may milk allergy ang babies, or those with sensitive tummies, alin po bang formula ang pwede ipalit sa gentlease na hindi po mapait? Salamat po sa sasagot.