Fever when use mobile. To help me?

I am CKD patient and creatinine is 1.9 last 2 week ago every thing is stable and taking nodosis, probiotics, ketovibe, farovab, renoxi medicine daily and every thing is fine but now i am getting 99.2 fever for no reason only when I use mobile phone what should I do History Hydronephrosis in 2020 and cured COVID in 2021 and inflammation in 2021 oct and get cured with steroids Last 2 week ago i get infection and cured in beginning of infection by ziddgen inj 1.5mg and now i am fine but from yesterday i am getting fever yesterday fullday fever Today i getting fever only want i use mobile phone If I put mobile phone my body temperature get normal 98.0 what should I do and i am also taking farovap 200mg 2 times daily plz give a detailed answers to help me