A reduced amount of urine, swelling of your legs, ankles, and feet from retention of fluids caused by the failure of the kidneys to eliminate water waste and unexplained shortness of breath, excessive drowsiness or fatigue are the symptoms. Common primary causes of nephrotic syndrome include kidney diseases such as minimal-change nephropathy, membranous nephropathy, and focal glomerulosclerosis. Secondary causes include systemic diseases such as diabetes mellitus, lupus erythematosus, and amyloidosis. Back problems usually affect your lower back. Kidney pain is felt higher and deeper in your body than back pain. You may feel it in the upper half of your back, not the lower part. Unlike back discomfort, it's felt on one or both sides, usually under your rib cage. So, keeping your kidneys healthy body are Stay hydrated. Drinking plenty of fluid will help your kidneys function properly, Eat healthily. A balanced diet ensures you get all the vitamins and minerals your body needs, Watch your blood pressure, Don't smoke or drink too much alcohol and Keep slim to help your kidneys.