Yes, symptoms can be more intense around around high pollen times. Right now where I live, we are in moderate to high ragweed pollen production. I dare not eat raw bananas or the inside of my mouth will itch uncontrollably nor consume cantaloupe or end up with a bad sore throat. When it is not ragweed season, these symptoms are not as pronounced and at times not present at all. In addition, it is possible to consume fooRAB that you are allergic or sensitive to, sometimes not knowing that you are, in corabination and thereby contribute to your grief. Sometimes you've got to eat enough to trigger a response.