From Middle English sinne, synne, sunne, zen, from Old English sinn, senn, synn (âinjury, mischief, enmity, feud; sin, guilt, crimeâ), from Proto-Germanic *sunjÅ (âtruth, excuseâ) and *sundÄ«, *sundijÅ (âsinâ), from Proto-Indo-European *sent-, *sont-(being, true, implying a verdict of truly guilty against an accusation or charge), from Proto-Indo-European *hâes-(âto beâ); compare Old English sÅÃ¾ (true, very, sooth; see sooth).
As the immune system worsens, a variety of complications start to take over. For many people, the first early symptoms of HIV infection are large lymph nodes or swollen glands that may be enlarged for more than three months. Other symptoms often experienced months to years before the onset of AIDS include: Lack of energy.
The person becomes vulnerable to serious illnesses. This stage of infection is known as AIDS. Signs and symptoms of late-stage HIV infection may include: 1  blurred vision. 2  diarrhea, which is usually persistent or chronic. 3  dry cough. 4  fever of above 37C (100F) lasting for weeks. 5  night sweats. 6  permanent tiredness. 7  shortness of breath.