Welcome to HCM,
When symptoms develops due to HIV
infection we call it AIDS
. After infection with HIV, disease usually takes about 8-10 years to progress to AIDS. Your symptoms can be due to HIV infection or not, depends on "For how long you are having unprotected sex?". To become sure, you have to get yourself tested for HIV infection for 6 months. To check Immune System is weak or not, you can get your peripheral blood film examined by a pathologist.
Wish you good health,