The thing is, this could be
a low-grade kidney infection that
you might have, or it could be that
something that is going on is impacting your system in a manner it shouldn't, or? It's difficult to know without having all the facts and only your doc has those.
However, at the very least, you should call your doc's office and ask if you should be taking anything - if, based on the urine test, you might have a UTI or other low-grade infection.