Hello, I am a bisexual male. Around the first days of October I had a sexual encounter with another male in a party; we penetrated each other, but since we were rather drunk neither of us used a condom. Later some of my friends told me he had a reputation of being rather promiscuous; that’s when the worrying began.
In this last month I have experiencing weird symptoms that may be HIV related. I started developing mild headaches, and then flu like symptoms (or maybe an actual flu?); the flu came with sore throat, nasal congestion and lots of coughing. Eventually I got better, the flu lasted about a week. However three weeks latter, I still got LOTS of coughing (sometimes productive, sometimes not-productive) and sometimes a mild headache. I haven’t noticed any additional common symptoms, no fever nor rash; only some sporadic diarrhea, nothing more than a day or two like three times since the intercourse.
I took a 4th generation ELISA test, about 70 days after that night; it came back as negative. How reliable is it? Are my symptoms HIV related?