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I have a cousin with kidney problems, and his doctors became concerned when he had too much protein in his urine. He takes medicine, and is doing fine. I just remember a decade ago, his doctor warning him about high protein in his urine.

During pregnancy when my urine test showed excessive amounts of protein, the doc asked if I'd been eating a high-salt diet recently, so that could be a factor.

The problem could be that you're taking in too much protein and not drinking enough water which should be 8 8oz glasses per day. Drinking lots of water flushes your system.

Could be as simple as dehydration or excess protein consumption. Worst case scenario, kidney disease. I think you will be fine though. Hope you get well