Symptoms of kidney disease/failure

What are symptoms of kidney disease?  Kidney disease often happens quietly and without warning.  As the kidney function decreases, the kidneys cannot filter the blood as easily and efficiently.  Symptoms may be vague such as feeling tired and lacking energy, having difficulty thinking clearly, having a poor appetite, not being able to sleep, dealing with muscle cramps at night, having swollen feet and ankles,

having dry, itchy skin, having puffy skin around the eyes, and needing to urinate often, especially at night.  National Kidney Foundation website, http://www.kidney.org/kidneydisease/aboutckd.cfm