Worried about my son

I'm sure you are already planning to see a professional, but that's my advice. For most small children who refuse to eat (when they are not sick or have some other physical problem) it is about control. They learn very early that by not eating, that puts then in charge and gets lots of attention from Mom and Dad. What worked for us was to leave the food where our daughter could get to it without asking for it, and ignoring her. Once she got hungry she began sneaking bites. Now - this is after like not eating for a day, not a week - I would be seriously freaking out if one of my girls hadn't eaten since Christmas.

I'll pray for you, your son and your family and for wisdom from your professional.