Has anyone developed kidney problems as a result of using painkillers for too long? I have been taking about 30mgs a day or hydrocodone or oxycodone for about two year. I don’t have any symptoms or issues at all, but I just noticed that my lower back looks like it’s slightly bruised. I have no idea if these things are related, just wanted to see if anyone had any experience with this stuff.

Also, if I go do my doctore and it turns out there is a problem, can they detect in their tests that the problem was the direct result of using painkillers?

Thanks