Many people will not get symptoms.
Many people will not experience any short-term symptoms of HIV infection - so symptoms or not, the more times you have unprotected anal sex, the more often you should test for HIV.
But some people will.
In some people, symptoms may occur from two to four weeks after HIV infection and may include flu-like symptoms that are easily confused with other infections, such as fatigue, fever, night sweats, sore throat, swollen lymph nodes, headache, loss of appetite or skin rash. These symptoms usually last less than two weeks although they can last as long as 10 weeks. If you‘ve recently had unprotected anal sex and experience any of these symptoms, you should have an HIV test at your emergency room, GP or sexual health service.
Not all doctors will recognize the symptoms.
If you see a doctor because you have symptoms, it’s important to explain that you feel at risk of HIV and ask to be tested, even if they don't suggest it. Don't assume you will be tested for HIV just because they took your blood. Ask to be sent a copy of the results.