I am wondering what tests are done to diagnose chronic EBV and how they differ from regular EBV testing? I'm a 31 year old female who has suffered from fatigue, sore throat, and muscle weakness for the past 26 months. Prior to an immediate onset of severe flu like symptoms, and throughout my whole life, I was incredibly active, competing in half-ironmans, half-marathons, but more than that, just LOVED running, long distance biking and swimming purely for the join of movement. Since getting sick, I have been too weak to partake, and get too sick / bed ridden if I try to. I continue to work and remain moderately active (walking and yoga) but it's a struggle as I persistently feel weak and sick. I had mono when I was sixteen, recovered in a month or two, and had no lingering effects. My blood tests for EBV (VCA IgG, EA IgG and ENBA IgG) are all reactive. My mono screen test is also positive (I know that this doesn't necessarily mean anything, however, when I was tested in 2015 prior to my illness, it was negative).