louise
I believe that impaired glucose tolerance is actually an early stage of diabetes and that it may be possible to reverse it at this early stage. the safest thing therefore is to act as if you have a diagnosis of diabetes and work to keep your blood glucose down. It would be worth you whipe to get yourself a meter and test strips. Your doctor is most unlikely to prescribe one, but the meters are not expensive if you get them from the supplier and the strips are cheaper there than from a retail pharmacy. If you hunt about, you can even get a meter free.
It is known that people without a diagnosis of diabetes, but with raised blood glucose are at risk of "diabetic complications"