Allergy symptoms are not always verified with allergy tests.
How can this be?
There are a number of possible reasons.
Allergy tests are not 100% accurate. You may get a false positive or a false negative.
A false positive is when the allergy test shows that you are allergic to something when you are not. This may cause you to needlessly avoid certain things to avoid allergy problems.
A false negative is worse. It can mislead you into thinking that you are OK with something when it actually cases allergy symptoms.
If you are tested for an allergen and get a negative result, there is a chance that you are still allergic to it.
Use allergy tests as a guide. If your doctor says you are, or are not allergic to something, do not take this as 100% fact.
It would be impractical to test you for every possible allergen. Tests are for the most common allergens. You may have an allergy to a less common allergen.