I started losing weight when I cut out carbs. I don't have a 'normal' metabolism; carbohydrates drive my blood sugar high and make me gain weight. Diabetes runs on my mother's side and I've been heavy on and off for years. If you can cut down on bread and other food made with flour, cut way down on food made with sugar, potatoes and rice, you may lose more weight faster than with other diets - if your metabolism is like mine. Since your fasting is elevated, I'm presuming you could have the same problem I do. I hope they can figure out the vertigo. That's miserable, I'm sure. (I need to sign off now but will be on tomorrow morning.)
Keep posting, Emma, and read through some of our threads. I hope we can help you get your blood sugar down to better levels for future lab tests.
diabetes type 2 controlled so far by diet and exercise
very low carb way of eating