If you own real estate property in a state other than the one in which you live and you have earned money off the rental of that property, you are required to file a nonresident income tax return in that state.
HIV damages the immune system and eventually leads to AIDS. When a person is first infected with HIV it can take up to 3 months for them to develop the antibodies that make an HIV test turn positive. In some rare cases it might take longer, but certainly not ten years. AIDS is not one particular illness but rather a group of opportunistic infections and cancers.
The only way to know of your HIV status is to get tested which you already have. It does no good to worry about past symptoms to try to figure out if HIV transmission was possible or not. Most people will get their HIV test results back within 1-2 weeks. You are correct that a positive result then leads to a confirmatory test called the Western Blot test. You will only be informed of a positive result after this Western Blot test has been administered.