If these 3 changes occur in the feet, the blood sugar may have exceeded the standard, so check yourself quickly! If these 3 changes occur in the feet, the blood sugar may have exceeded the standard, so check yourself quickly! If these 3 changes occur in the feet, the blood sugar may have exceeded the standard, so check yourself quickly! If these 3 changes occur in the feet, the blood sugar may have exceeded the standard, so check yourself quickly!