Strange EBV test results

hi all,it s my first time to write here so ill give you some details,i got diagnosed with mono in Aug i had an acute phase of 3 weeks after which i felt a lot better but then this only lasted for 2 weeks before i started feeling tingling and burning,the brain fog came after but its the WORST thing anyone can go through and i hate that there is no explanation for it.

just last week i had blood tests and i had IGM and IGG positive,so we did an EBV PCR which surprise came back negative !!! how ?? i dont know.
i repeated the test again and waiting for the results i also had a oxidative stress test which will measure glutathione levels too.