YES!!! Were you by chance avoiding those foods when he was tested?
It may not be an actual allergy or a bad allergy, but deft. an intolerance.
Tyler (my 9 month old) tested negative to oats, but everytime we have given them, he gets this awful huge red hot rash on his face.
The allergist seemed confused about it, but I could care less because he want have oats.
Me personally, I tested positive to several foods, but can eat them with no problems.
So I think the test can be wrong.
How was his mood and digestive system after he something with milk?