3 year old son may have autism

Hi everyone,

So we are in the middle of getting our little boy diagnosed atm he is pretty much non verbal just the basics hi, bye, mum and & dad etc he really is difficult when it comes to meal/snack times has anyone got the same problem? Im really worried he is going to starve, i have been trying to get him to drink vitamin drinks but even with that its hard. He is constantly getting colds and flu aswell. He is at nursery but he doesnt seem to interact with the kids there but seems to be ok during group time. Also he hates to be touched its quite hard to get him to give a hug etc although he seems to be ok with me just other family members.

Would like to know what everyone elses stories are? 

Thanks