When people think about seasonal allergies, they usually picture sneezing, itchy eyes, and a runny nose. But many allergy sufferers experience another frustrating symptom that often goes overlooked: fatigue. If you find yourself feeling unusually tired, foggy, or low on energy during allergy season, your immune system may be working overtime. Allergy fatigue is a real and common issue, especially during the spring when pollen levels are high. Understanding why allergies can make you feel ...