what are the symptoms of mono
The signs and symptoms of mono typically last for one to two months. Symptoms may include: 1  fever. 2  sore throat. 3  swollen lymph glands in the neck and armpits. 4  headache. 5  fatigue. 6  muscle weakness.7  swollen tonsils.ymptoms may include: 1  fever. 2  sore throat. 3  swollen lymph glands in the neck and armpits. 4  headache. 5  fatigue. 6  muscle weakness.