Kidney stones of this size in both kidneys can cause pain when they irritate or block urine flow. Drink plenty of water throughout the day to help flush the system and reduce irritation, and avoid salty, very spicy, or high-oxalate foods like spinach and nuts that can worsen stone formation. Rest during pain episodes, apply a warm compress to the side of the pain to ease discomfort, and try to stay active with gentle movement to support urine flow. A doctor may advise suitable medications to control pain or aid stone passage, depending on the stone's size and position. If the pain becomes severe, you have vomiting, fever, or difficulty passing urine, seek medical attention. Consult a doctor promptly to plan proper treatment.