My baby is 2 months ,but he is not gaining weight. when he is feeding formula milk ,with in mins he is passing motion.He is feeding both formula milk as well as breastfeeding because I am getting less milk

A. Hello mom if he is passing motion after having formula milk their is high possibilty that he isnt able to digest it well enough , check for the concentration of the formula milk. and in case no . get it checked for lactose intolernace even if he isnt to digest your milk as well.