There is no one list of symptoms, HIV will affect individuals in different ways. Some  examples are that you can become tired easily, lose a lot of weight or sweat heavily at night. You can also get skin problems, such as eczema and mouth sores. On average it takes ten years before someone with HIV contracts AIDS, but it could also take twenty years, or even only three. Once you have AIDS and it is left untreated, many illnesses can take hold relatively easily, for example pneumonia, tuberculosis, skin cancer and dementia