Every illness has its symptoms and so does kidney disease. Though, your doctor may be in a better position to evaluate your symptoms and point out exactly what problem you are facing. Nonetheless, when you are suffering from kidney disease, you may experience the following symptoms: Swollen feet Bone weakness Difficulty in concentrating Frequent urge to urinate Dry and itchy skin Loss of appetite Foamy urine Puffiness around the eyes Muscle cramps Trouble sleeping Please remember that these symptoms can also originate from another disease or ailment inside your body and therefore it is important that you fix up an appointment with your doctor and get his or her advice on the best kidney test that you should have.