If sexual history is not known,
HIV testing would indeed help in ruling out
HIV infection.
HIV Symptoms may vary from one person to another and are not definite in the diagnosis. These symptoms can occur within days or weeks of the initial exposure to the virus during a period called primary HIV infection. Many infections such as mononucleosis, viral hepatitis, other sexual transmitted infections, viral hepatitis, and even stress and anxiety may present with the same symptoms such as HIV.