A GTT 50 yrs ago gave me a diagnosis of "impaired glucose metabolism." No mention ever of "pre-diabetes." I am now 80. Annual fasting blood tests showed fasting serum glucose in range 5.1 to 6.6mmol/L. Then in Feb 2019 it was 7.3 (56 mmol/m). Repeat test in June 2019 showed 7.3 with HbA1c of...