I just recovered from several days of high fever and severe chills with fatigue and some headache. Since I had lithotripsy several days earlier and was being treated for an unresolved UTI, I suspected a kidney infection and so did my urologist. I received IV antibiotics (and a ureteral stent). Unfortunately, now both a friend and my husband have what appears to be the same chills, fever and fatigue. No respiratory symptoms, no muscle aches, no GI symptoms. Can't sort out what it might be.