Hi Rickey. It might be a good idea to see an endocrinologist since that's a specialist who has a lot of experience in diabetes as well as other gland problems. I think your own doctor realizes about the effects on your blood sugar or he wouldn't have taken those blood tests to check your blood sugar, unless there's a history of diabetes in your family and he wants to make sure you're not going too high. My advice is to do what you're doing, that is, trying to learn as much as you can about your particular situation and with the help of an endo, you should be able to protect your health. Generally speaking, the more carbohydrates you eat, the higher your blood sugar will go if you are having problems metabolizing carbs especially. So, read around the forum here because we've talked a lot about how diet affects the blood sugar. And read the two stickies at the top of Diabetes, Testimonial and the Resources, too. If you try to cut down on food made with white flour and sugar, you'd see lower blood sugar.
Also, I want to add something to my other post. I'm not sure if a GTT would be affected by your BP meds that day. Normally, the lab tells you to fast for 8 hours before the test but they also tell you that you can take your medication that you normally take. However, I don't know if the diuretic would skew the results. If I were you and if the doctor does order the GTT, then I would ask the doctor and the lab if you should take the diuretic that day before the test.