My daughter had mono this past Dec. she is very tired all the time and her ankles are now swollen to the size of tennis balls. We are concerned this is a long term side effect and that it may be the first signs of a more serious problem. Please advise
Reactive arthritis is a benign condition accompanying a lot of viral and bacterial diseases. Generally it solves by itself. Fatigue too may be linked to chronic fatigue syn Chat Doctor.  This one may persist all life long. However, blood tests (red and white blood cells counts, ESR, RCP, iron levels) are helpful to better analyze these conditions