(Before I forget... I meant to mention a very important thing. Grain products can be healthy, but if you don't prepare them properly, they take minerals away from your body because of pythic acid... like calcium, iron, zinc... that's probably part of why I got so sick).
A lot of icky details in this post, you might not want to read if you're eating :P
Summary of this post:
I don't think you can say I have an allergy to anything, because I could eat those foods without problems when I lived back home and foods were prepared traditionally, and I don't have any side effects to those foods now that I prepare them traditionally again. I only react to those foods if they're poorly prepared (modern food).
Do I have an allergy to wheat if I can eat traditionally prepared wheat without any side effects, but can't if it's not properly prepared?
So what's the point of testing?
I never got tested for allergies, I was too sick so I couldn't work. Without insurance, I couldn't see a specialist. Glad I didn't, it would have been a waste of money and gas to drive there.
My husband got tested when he was young, and like your son he was "allergic to everything". Though just one little problem... he isn't! He can eat everything he's "allergic" to. The difference is that it needs to be prepared traditionally.
He used to have a cold all year long (nearly everyday since he was young) and always had some sort of stomach bug, plus acne all over his body. Now he doesn't.
We're on a tight income so we're not going to get tested to see if the "allergies" are gone. I don't see the point in testing anyway :-) Unless it's something that makes me stop breathing and I die... and in that case I wouldn't need the test to tell me that! ;-)
We generally just eat meat (and fish, eggs) and vegetables (and fruits), plus broth and fat for cooking, because that way it's so much easier to shop and cook. And we do great eating like that. Sometimes we eat grains, milk, and nuts, if we feel like it.
If he eats a little ice cream or milk from the store, he's coughing up a lot of green mucus all day long and is always sniffling. But he can eat raw milk or raw ice cream when I make it, and it doesn't cause that problem.
So does that mean he's allergic to milk? Or... not?
You read about how I grew up. I ate all sorts of food, but it was prepared by traditional methods. I was not allergic to any food.
Then I moved away and started eating modern foods. And I started reacting to a lot of foods, even vegetables, fruits, seeds and nuts. Regardless of what allergy tests would say, I believe I'm not allergic to any foods. If I were, wouldn't I react to those foods when I lived back home, and wouldn't I still react to those foods now that I eat traditionally-prepared foods again?
I can eat nuts if I soak them in water the night before... but they cause bloating, joint pain, and diarrhea if I don't soak them. Does that mean I'm allergic to them... or not?
I can eat a huge loaf of traditional bread without side effects, but I can't eat one slice of modern bread without bloating to 9 months pregnant, having crippling joint pain, or having my hands tremble like Parkinson's disease. Oh, and having diarrhea and farting a lot.
So... am I allergic to gluten... or not? Though I might test positive if I eat modern bread, I'd say I'm not allergic to gluten since I can eat traditionally prepared gluten/bread.
Note that I also can't eat modern corn bread. One square slice gives me the same side effects. But when I buy freshly ground flour, and soak it in yogurt or whey overnight before baking, I can eat the whole loaf without feeling side effects. The same is true for other grains.
I can eat wheat and other grain muffins, pancakes, waffles, cookies... but the flour needs to be freshly ground and I need to soak it at least overnight (this depends on the temperature in the kitchen, because my kitchen is generally very cold, I end up soaking at least one day). But I can't eat those foods if they're from the grocery store, restaurant... and I can't eat them if I make them at home "the modern way" either. So it's nothing to do with being home-made, it has to be done the right way. I can eat those products if I buy them from a farmer or store if I know they prepare them traditionally.
I can eat these oatmeal and wheat cookies (I generally use regular sugar since I can't afford those fancy pants sugars) but I can't eat oatmeal cookies prepared "the modern way".
My husband loves blueberry muffins, so I sometimes make some for him. I soak the wheat and oatmeal flour in fresh lemon juice instead of whey. We slather each warm muffin with a stick of butter. So good!
Anyway, even before I started eating those foods, I noticed I needed to have a lot of broth everyday, and eat a lot of animal fat. Probably because I went many years without eating those. I need to eat a lot of fat cuts of beef or pork, and a lot of tallow or lard when I cook, or I start feeling tired and moody... and hungry. When I eat those I'm full for 8 hours, but when replace them with beans and grains, I'm hungry after two hours and end up eating a looooot of calories and still feel hungry...
My husband is the same...