Both Rhys and Rose had UTI's not at the same time though. Rhys was pretty normal acting, with the exception of him bleed from his privates.
Rose was a whole different story, I never saw the blood coming from her I just found a complete explosion of blood in one of their tunnels and later found her curled in the cage alone, rather poofy looking and lathragic (sp?). I wasn't sure she was going to make it, but with meds she came right back!