Been tested for hiv five times, four with home rapid tests, once at clinic, all negative. if test for hep c and b come out pos, more hiv tests needed?

If new exposures: If a person has new, risky exposures to HIV, after testing negative, then future testing can be done. The fix here is, of course, to NOT expose oneself to new, risky situations... otherwise, one will either worry all the time, or have to do periodic testing in the future. If one does not stop risky exposures, there is no other way around it.