The condition is called FSGS (focal segmental glomerular sclerosis), a condition where the kidney glomerus leak protein into the urine. It was discovered after a urinalysis for a life insurance policy found protein was in my urine, a biopsy confirmed the diagnosis, all blood tests came back normal. They do not know what caused it, as it is usually associated with blacks, people with HIV and IV drug users. I've been put on an ACE inhibitor which has reversed the condition to some degree despite continuing a heavy protein diet. It will never be normal as the kidneys do not heal like the liver. The goal is to keep it at a nominal-mild level.
I currently weigh 200lbs at 5'7" and 8%bf. I have been considering just getting a little leaner and maintaining, so maybe that is the direction I will go. Still, it feels good to get bigger.
Interestingly enough, someone on outlaw posted a study which examined 10 steroid using bodybuilders over a period of time and 9 were ultimately diagnosed with this condition. Likely it comes from a combination of high blood pressure, heavy protein intake and strenuous lifting.