A.J.
I think I'm a bit confused about why you would eat differently while working versus not working? With GD it is important to eat every couple of hours and to keep the carbs low. As your pregnancy progresses it typically gets more and more difficult to keep low blood sugar levels due to the hormones changing in preparation for labor. Do you see an endocrinologist? I'd recommend seeing if you can see a diabetes specialist to help you figure out a good food schedule. I ended up on insulin and even then I had to adjust insulin levels 1-2 times per week after I was 30 weeks (I went into labor at 37 weeks).
As I approached my delivery date, my numbers were off the charts no matter how perfect I was and it was very stressful. And apparently stress impacts blood sugar levels as well. I felt like no matter how hard I tried I failed. Try not to do this self-blame thing like I did:) Keep up the diet and make sure your breakfast is mostly protein with the lowest amount of carbs because the morning is the most difficult time for blood sugar levels.
If it makes you feel any better, even though I only had maybe one week (and not consecutive days) where my blood sugar levels were good and I had a healthy baby boy, 6 lbs 11 oz, his blood sugar was fine and my diabetes went away.
I wish you the very best and I'm sorry you have to deal with this! It was tough on me but please know it will all work out! Hang in there!!!!