I Am Unable To Find Diagnosis And Relief From Severe,

I am unable to find diagnosis and relief from severe, intense sudden onset of flank pain on right side. it came on suddenly four years ago & comes & goes. Tests do not indicate kidney stones or infection. Extreme pain causes dangerously high BP. Kidney biopsy indicates this is causing destruction of blood vessel damage inside kidneys. I am 71 yr. old female, 5 ft., 163 lbs.