I already went to the doctor. Actually, two doctors. They think I'm just over anxious.
HIV can cause flu like symtoms weeks after infection.
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I had a similar experience when I was 18, back when you had to wait like 6+ months for the all clear. Girl gave me the clap (

)... and getting to know her after and the party lifestyle she led, I was paranoid as fuck that I was going to get the hiv too (asked her to get tested 3 times over the 6 months lol). Every little cold, ache, feeling of unwell, I was positive was a symptom. Turned out the doctors were right though. It’s fairly hard to contract it from PIV sex, unless very rough or there are open sores from what I was told and have read.
I wouldn’t stress too much about it.