hii dr.my son has 29 months old and his weight is 12.3 kg and height is 93cm is it ok I am worried about his weight last 5 months se uska weight gain hua hi nahi hai and he is active and eats 3 meals about one roti in every meal with home made sabji and curry and 2 snacks fruits and 2 time milk about 500 ml in 2 times morning and evening pls answer me and clear my doubts