The symptoms of kidney failure are the result of a slow build-up of waste in the blood and the gradual failure of the kidneys' regulatory functions.
Excess fluid builds up in the body because the failing kidneys are not producing enough urine. This can lead to a condition known as edema. This excess fluid causes symptoms such as swelling around the eyes, in the hands, ankles and feet. If excess fluid continues to accumulate, fluid overload can occur. Fluid can start to collect in the lungs, causing pulmonary edema.
If you have fluid overload, your blood pressure will also increase. This is because your blood contains more water than normal, which increases the pressure on your blood vessels.
When your kidneys are damaged, there will be a slow down in the production of the hormone erythropoeitin, this will mean that your body does not have enough red blood cells. This causes anemia, a common complication of kidney failure. If you don't have enough red blood cells to carry oxygen around your body, you will become weak, cold, tired, and short of breath.
Since the symptoms of kidney failure appear slowly and over a long period of time, they can be easily overlooked, or thought to be normal responses to the stresses and strains of everyday life, or thought to be other symptoms of Lupus. This may delay a diagnosis and treatment and may increase the damage to the kidneys. If you really think that you are experiencing the symptoms of kidney failure that I've listed below, you should advised your doctor immediately:
A metallic or other foreign taste in your mouth; Tiredness; Feeling cold;
Headaches; High blood pressure; Insomnia; Itching and dryness of the skin; Loss of appetite or nausea; Pain in the small of the back in the area of the kidneys; Poor concentration, confusion, forgetfulness; Poor sex drive; Restless or cramped legs; Shortness of breath; swelling in the hands, feet, ankles or face (especially around the eyes, when you just wake up); Urination problems, such as foamy or bloody urine, more or less urine than usual, or a change in how often you urinate.
I hope that I've answered your question. Please let me know if you need anything further. Again, make sure that you let your doctor know if you are experiencing these symptoms.
Peace and Blessings