You certainly need a nephrologist for your kidney problems. The fact that you have a kidney cyst strongly suggests that you might also have nephritis from a kidney infection. Because of your other signs/symptoms this could be a systemic infection. Sometimes these are difficult to pin down, and most physicians essentially give up trying to find a cause, if an immediate cause can't be found. If nothing infectious can be easily found in the biopsy, your physician should consider a number of stealth infections (viral and bacterial) that often go undetected but can cause systemic signs and symptoms.
Hello i have been dx with lupu sle and ra with renal levels at 1.14 and i see black dots i was dx with lupus in 08 . i can not see the speicalist until june 2010. Iam also with meds for my lupus as of the 14 th of jan.