Mononucleosis Symptoms: 16 Early Warning Signs and Symptoms of Mononucleosis

2Fatigue and malaise

Fatigue – 12Healthy.com

It is one of the most commonly presented symptoms in infectious mononucleosis patients. Patients complain of prolonged fatigue and malaise for months. Chronic fatigue resolves in 3 months and may rarely persist up to 6 months.