Teach him to cut the tags out of his own clothing?

Heh, seriously, though, you should probably go and get some statements from the nurse practitioner and his doctor and have them recommend him for some useful therapies. Both his doctor and the nurse-practitioner may not know enough about autism to do a proper evaluation, but they can still pinpoint things that your son needs to learn and refer him to a therapist who can teach him.

Texture issues with food are a real pain. Vitamin supplements will cover some of it, but I wouldn't push it too hard, or else he'll connect fruits and vegetables with unpleasant experiences (being forced to eat something that makes you gag is highly unpleasant). Just keep offering them in different forms and ask him to try a single bite of the ones that are less unpleasant. If he spits it out, that's OK. Confrontational doesn't work when it comes to food, trust me.