Hi, Welcome to HCM. I understand your concern regarding glandular fever occurring again. Glandular fever is an infection caused by a virus called Epstein Barr virus. This virus belongs to Herpes virus family which has the unique property of staying dormant or hidden in the body and getting reactivated when the person s immunity is low due to various reasons like stress and illness. in your case I am suspecting repeated reactivations. In children this infection is asymptomatic but in adults it presents as pharyngitis, fever and swelling of lymph nodes. I would suggest a monospot test to confirm diagnosis of glandular fever as streptococcal infection also presents with similar symptoms. CFS is chronic fatigue syndrome caused by viral infections, Lyme disease etc. The only treatment for CFS would be healthy diet and regular exercise. I suggest you get the test done to confirm mono diagnosis and get appropriate therapy based on the test results. thanks.