high fever and chill are indicative of infection indeed and as we have a cause rightly evident there are chances that you may be developing hydronephrosis (accumulation of urine in swollen kidney) in the right kidney and a secondary infection following stasis of urine (stoppage or reduced flow of urine) in the kidney leading to nephritis. though urine culture generally picks up infection in the bladder nephritis is more of a clinical diagnosis with pain and tenderness in the renal angle and high grade fever accompanying it. ideally you should be started on prophylactic antibiotics to control the infection sooner before septic features or septicemia may occur. i think you should take a second opinion from another urologist too. for further information consult a urologist online --> <link>
can high fever and chill occur due to kidney stone?