Hi, I had unprotected anal sex with a friend of mine, I was the receptive partner, based on his sex habits I assumed that he was HIV negative but really I don´t know for sure, 12 days after this I began feeling unwell, with fatigue, a sore throat, headache and fever going up and down, ranging from 36.8 to 37.5 °C all day long, the symptoms have lasted four days and they remain the same now, is this temperature enough to be defined as fever as my regular temperature is 36.6? If it was in fact Acute HIV syndrome should I expect to see this rise to 38°C? Thanks in advance for the answer...