Eating less!

Breanna

Ever since I changed my sons formula to similac sensitive he started to eat less! Like 2oz every hour when normally he would take up to 3/4oz every 2/3 hours with his last formula. He doesn’t seem allergic to the formula and his poop seems fine! Mind you he will be 2 months on the 11th of January!! Has anyone else have this problem when changing formula?