last sexual act was july 2015. no ejaculation/oral. began developing odd symptoms a year later. (sept 2016) white tongue, fever, swollen glands, sore throat. went to the dr., tested for mono and came back reactive. began freaking out because i read mono should never reactivate with symptoms unless it's cause by some severe immune disorders (cancer,hiv..etc)...so i panicked. and since the white tongue hasn't cleared up i took an 4th gen test in oct 2016. tested negative. no sex since that july 2015..no drug use. would mono affects negative results ? can i trust my test?