Consult a kidney function problem

Health counseling description:
I, male, 53 years old. Yesterday, I renal function tests, creatinine 145umol / L uric acid 437umol / L, (blood urea nitrogen 5.50 mmol / L), I do not know the problem is not so big? Recent period, the lower back is often sore, very uncomfortable. Is there a problem? (I had high blood pressure for more than 20 years, diagnosed with primary aldosteronism 2003, after a laparoscopic surgery, the blood pressure high pressure good, basic 130-110, but low pressure in between 90-80, when it's cold also higher, eat antihypertensive drugs, that is, the pressure difference is small, only 20-30.)
The kidney specialists answer: Hello, there are some problems, but not great, the proposed adjustment with traditional Chinese medicine.