Anonymous,
Very interested in your post on your son's symptoms. I have been wondering the same about my sons. What kind of symptoms have your boys been having?
My oldest (15) has had headaches and a nervous stomach since he was about 5. My younger son (10) has ringing ears, stuffed ears, he has "strange" thoughts about "robbers coming through his window" and other things he says he can't get out of his mind. He also is almost continually stuffed up and falls easily to colds.
Do any of these sound familiar? Would love to hear from you.

Chelan