Delayed kid in speaking

Hey my son was born 8/11/2015.he is skinny with skinny legs.big tummy.
He has curly thin light brown hair.his skin is olive.
He loves finger foods like meat balls,cucumber, Lollies ,chocolate and gluten free bread.he doesn’t like vegetables and fruits. He is gluten intolerant and dairy intolerant.he is drinking almond milk.he is in 25% of the growth.his head is in 50% though...
He is falling down very easy.and he looks younger than his age in his behavior.he is more immature.he doesn’t say many words.he has about 20 words but he doesn’t put two words together.he doesn’t say milk for example...he doesn’t say the names of objects.only animals and names of people and some colours. He is still sitting in w position.
He needs me to fall asleep and he loves sleeping in his tummy. He loves touching my hair or his hair when he is falling asleep.
He has brown eyes.he is a happy kid and he plays very well with other kids.he is very friendly no problem with strangers.he is a little bit shy at the start but he is very friendly.
Can you please give me remedy for that problem?
Thank you
Mummy2