If the constant cold weren’t enough, a brutal winter has many speculating that the polar vortex will be replaced by a “pollen vortex,” leaving allergy sufferers sniffling and miserable. Alesia Kotek is ready for the worst. She and her 13-year-old daughter Caitlin share allergies to grass and trees — and Caitlin started getting itchy, watery eyes this spring while snow was still on the ground outside their Cleveland, Ohio, home. “I’m very nervous about this year with our allergies,” Alesia Kotek said. The long, cold, winter felt by much of the U.S. may indeed have an effect on this year’s spring allergy season. But is this shaping up to be the worst allergy season on record? That depends on what you mean by worst. Experts say that for much of the country, winter’s extended cold could lead to a shorter, but more intense allergy season. More