Waking up 2–3 times to urinate (nocturia) disrupts sleep and is strongly linked to declining kidney function in multiple studies.
7. Itchy Skin That Drives You Crazy
Toxins that healthy kidneys would remove build up and irritate nerve endings in the skin, causing relentless itching — especially on the back, arms, and legs.
8. Metallic or Ammonia Taste in Your Mouth
Food suddenly tastes like pennies or cleaning fluid. Waste products in the blood change saliva and taste perception.
9. Persistent Bad Breath No Mouthwash Fixes
