People with high creatinine and early kidney damage usually display no symptoms, and is usually diagnosed through a blood test. When the kidney function gets worse, it can cause fluid retention, that can show up in the ankles, and the feet, apart from low urine output, and foamy urine. The reduced kidney function can bring fatigue, shortness of breath, nausea, itching, muscle cramps and high blood pressure. In kidney failure, the symptoms are confusion, chest pain, trouble sleeping and very dry itchy skin. In more advanced kidney failure, symptoms can include confusion, chest pain, trouble sleeping and very dry, itchy skin, because waste and extra fluid are building up in the body and affecting many organs.
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