Mine is an autoimmune disease called IgA nephropathy. One day when your body is fighting a cold or something your immune cells decide your kidneys are a good pl

Mine is an autoimmune disease called IgA nephropathy. One day when your body is fighting a cold or something your immune cells decide your kidneys are a good place to attack. The immune cells are big so they damage the filtering capacity of the kidneys. And you don't even notice it until your GFR (level of kidney function) drops super low and you start feeling crappy. There is not a lot you can do about IgAN except get lucky to catch it early and slow its progress. However mine was a quick progressing one and happened between doctor visits. Only thing I can say it get a baseline comprehensive metabolic panel blood tests (its very cheap) and do it periodically to monitor your health. The medical system tends to be reactive but you as an individual should be proactive. If you think about it people get their cars checked out more often than themselves.