Sigmund Freud emphasized the importance of the unconscious mind, and a primary assumption of Freudian theory is that the unconscious mind governs behavior to a greater degree than people suspect.
The only way to tell. The only way to tell if a person has HIV is through the HIV Antibody Test, which detects the presence of antibodies produced by the body in response to the HIV virus. It can take up to three months for antibodies to be developed.
The time between when a person may have been exposed to HIV and when a test can tell for sure whether they have HIV is called the window period. The window period varies from person to person and depends on the type of test used to detect HIV.