Change in Urination

• Even when liquid consumption has remained the same, a person may begin to notice a lack of urine. Sometimes, there will even be no urine produced.
  
  

Loss of Appetite

• A airly common sign of kidney failure is a change in appetite, usually feeling as if you have no real desire to eat. This may be accompanied by nausea or vomiting, though these symptoms aren't necessarily linked.
  
  

Pain

• Typically, moderate pain will be isolated somewhere between your waist and ribs on one side of your body, more towards your back than your front.
  
  

Swelling

• People suffering from kidney failure have also been known to experience a swelling in one or more of their appendages. This particular warning sign ordinarily affects only the feet and/or legs. This swelling can be slight or pronounced.
  
  

Change in Heart Rate

• This will usually present itself as a faster heart rate than usual.
  
  

Cognitive Issues

• Cognitive issues can manifest as anxiousness or confusion. There may be an almost overwhelming sense of restlessness that could affect sleep.