Am thinking that the shaky in the morning means your blood sugar is low, which doesn't mean that you actually have g.d., because it would be natural to have low blood sugar when you haven't eaten for 10 hours. Drinking juice will shoot your blood sugar way up, so if you instead have a whole-grain cracker or some complex carb first off, it will raise blood sugar gradually, instead of spiking it, which could lead to a drastic drop again. Even if you don't have g.d., there's nothing wrong with avoiding sugar, eating every 2-3 hours with a bit of protein (cheese, peanut butter, egg, cottage cheese, yogurt) and some complex (whole grain) carbs, and walking for 20-30 minutes after your lunch and evening meals--which is probably what they'll tell you to do if you are diagnosed with g.d. But these are healthy eating habits anyway. Keep a log of your symptoms and what you ate when. If you still have probs, you might be able to convince your OB to test you before the 24 week (or is it 28 week) point.