hi vivan is 22 months old as when he around 1 year 5 months old he started speaking mummy papa dada most of the wards he was trying and observing thing we use to do bus now a days he is not even speaking mumma papa properly and very picky eater he is just speaking his own wards which I am not able to understood I am so worried why he is not speaking wards as he use to speak earlie even sound or dog he use to speak but till date he is not telling anything