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.
HIV may not cause symptoms early on. People who do have symptoms may mistake them for the flu or mono. Early symptoms of HIV are called acute retroviral syndrome. The symptoms may include: 1  Belly cramps, nausea, or vomiting. 2  Diarrhea. 3  Enlarged lymph nodes in the neck, armpits, and groin. 4  Fever. 5  Headache. 6  Muscle aches and joint pain. 7  Skin rash.