Allergy symptoms can range from sneezing and congestion to less obvious signs like fatigue and disrupted sleep. Persistent nasal drainage can irritate the throat, leading to coughing, especially in the mornings. Symptoms such as wheezing, chest tightness, or difficulty exercising may indicate allergic asthma. Observing patterns—like symptoms worsening after outdoor activities or recurring every fall—can help differentiate allergies from other conditions like viral illnesses.