I went through all the same test. Except a kidney biopsy. They have done all kind of blood work and even a sonogram of my kidneys. I am 27 yrs old. I am about to take an ace inhibtor to control the protein in my urine whice is just 1 gram. I am a little scared about the protein thing. I have always been a big meat eater. Never hardly ate vegetables. Now I am eating them. Help me not to be scared please!!!!