Symptoms of Kidney failure
   
 
When kidneys begin to fail the symptoms are often mild and ignored, and it is likely to take a long period of time for the problem to be detected and treatment started. In addition to the symptoms below one may find high blood pressure. High blood pressure occurs when the blood contains more water and salt than normal; this increases the pressure in the blood vessels.

Knowing the symptoms of can help you recognize the problems and get proper treatment. Keep in mind that the symptoms can be signs of problems other than kidney failure, so if you experience any of the symptoms, be sure to discuss them with your doctor.

 
1
Swollen feet/face and shortness of breath
When kidneys are failing, excess fluid builds up in the body and can lead to a condition known as edema, which is swelling in the hands, ankles, feet, or face (especially around the eyes, when you just wake up). Fluid can also collect in the lungs, which may cause shortness of breath.
2
Weakness, fatigue, feeling cold, shortness of breath
Kidney damage can slow down production of a hormone called erythropoietin, which leads to a low red blood cell count. This causes anemia, a common and treatable complication of kidney disease that can make you feel tired very quickly.
3.
Poor concentration and trouble sleeping
Anemia can prevent your brain from getting enough oxygen, which can lead to difficulty sleeping, difficulty concentrating, and dizziness.
4
Changes in urination
Your kidneys make urine, so kidney disease can cause urine to change. Urination problems include foamy or bloody urine, more or less urine than usual, a change in how often you urinate e.g. nocturia (waking up at night to pass urine), or pressure or difficulty urinating.
5
Rash or itchy, dry skin
Kidneys remove waste from the bloodstream, so when kidneys fail, the buildup of waste in your bloodstream can cause skin rashes or severe itching.
6
Metallic taste in your mouth, loss of appetite, nausea
Buildup of waste in the blood (called uremia) can make food taste different or cause bad breath, which can lead to loss of appetite, vomiting, nausea, and weight loss.
7
Restless, cramped, or sore legs
Build up of waste products can cause nerve damage which may cause restless leg syndrome.