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Gayle,
I just read your description of the behavioral changes you and your
son incur after eating gluten...irrational anger, general fuzzy
headedness, shakey-hungry, slow reading, etc.
This sounds like 'hypoglycemia' [low blood sugar] to me. Before I
knew I had a gluten intolerance, I used to eat various cereals for
breakfast. Usually, after maybe 4 hours had past, I would slip into
hypoglycemia and get the symptoms as you described. Have you been
checked for such a thing?
BJ