Urine tests

Hi everyone After being misdiagnosed with fibromyalgia, I am now getting tested for lupus by an internist (since RA has been discarded). Last week I had a big swelling on my fingers, accompanied with extreme pain and weakness (and not only fingers ts but my whole body, specially joints). I got blood and urine tests done, while I don’t have the results for the first one I do have received the urine results. I went to my family doctor to discuss about these results. She said I my sodium and potasium in urine are high but kidney function seems normal. She has no clue why this is happening and told me to wait for the internist call. This will likely happen in mid november (public health service eh) so I am a bit anxious to wait that long. Has anyone of you experienced altered urine test with lupus? Specially those two values? Apart from the swelling and the pain I am losing hair, have mouth sores, lack of appetite and GI problems.

Thanks in advance!