Thanks for writing.
Unprotected oral sex is low-risk for HIV. If the oral sex you describe is your only risk factor for HIV we would not recommend re-testing at this time.
While it’s possible in theory for HIV to be transmitted through oral sex, it is very rare. Even if you had ulcers in your mouth, the risk is still low for HIV. The fact that there was no full ejaculate (only exposure to pre-cum) further reduces the chance of HIV being transmitted.
Regarding your symptoms, it’s very difficult to diagnose HIV based on symptoms. The symptoms caused by HIV are also very common to other health concerns, and are not specific enough to suggest HIV infection. Folliculitis is a common skin condition experienced by all people (HIV negative and HIV positive).
Lots of people feel anxious about HIV. It’s very normal for people have complicated emotions after having new sexual partners, or experiences. Some people will think their HIV test has to be positive even when they’ve had multiple negative tests. For more ideas about managing these kinds of emotions check out our Worry & Anxiety page.
Please feel free to comment below or submit another question as needed.