@Roberta,
I was allergy tested a long time ago and was noted as strongly allergic to 64 things. Most of those have never panned out in my real life. Olive trees? First, I love them, love them silly, and love olives and olive oil. I never run into olive pollen. Various grasses. Grasses never make me sneeze or wheeze. And so on.
Some other positive reactions did fit, like dust mites, dogs, cats. Pacco was a hypoallergenic dog, which was lucky, as I lied on the the humane society application in order to take him home.
I haven't been tested for food allergies. Too late now, unless I have some sudden new reactions.