@the.health.vault: Signs that you have kidney problem In the USA and the UK, doctors in cities like New York and London often say kidney problems develop silently, with symptoms appearing only after the kidneys are under stress. Many people notice swelling in the feet, ankles, or around the eyes, especially in the morning. Some experience changes in urination, such as foamy urine, a darker color, or needing to urinate much more or much less than usual. Others develop constant fatigue, lower back discomfort near the ribs, or trouble concentrating throughout the day.