My son is 6.5 year old and his weight 17 kg. He is having reflux since his childhood. We had consulted doctor when he was 3 year old . Doctor said you need to wait , usually reflux will go away as kid grow. I have seen improvement from childhood but now he laugh or cry he vomits his food. He is very fussy in eating and very slower eater. Due slowness his lunch never finish in his school. If we force to eat then he will  vomit. I m much worried about his growth.