Hello,
Food allergies can be hard to detect, sometimes more than one test is warranted. You can also test yourself, stop eating the food/foods that you feel you are allergic to for about two weeks, then, slowly, add them back, one by one, see how you feel. Counting your pulse 20 minutes after eating an offending food can help too, if it rises about 10 to20 beats above your resting level, that is a good indication you are allergic to that particular food.
