OIs do not start in days. It takes years for most people's CD4 to drop below 200. If one knows they are positive and have a CD4 less than 200 they are given antibiotics to prevent OIs.
and may never develop opportunistic infections..
as teak said when ur cd4 gets below 200 - then u become prone to infections as ur body cannot fight those infections which a person who is hiv
and may never develop oppotunistic infections..quality of life can be compared with someone who has diabetes..it all depends on ur cd4 level..
why dont u see an STD doc..he will surely give u all necessary details u need
all the best