Failed glucose test...other options?

Nickie
Failed my glucose test! Next option?
It was 158 and the high acceptable was 140. I know why, EVERYTHING gives me heartburn right now and I've been carb loading because of it. Like 55-60 % of my calories coming from carbs. I'm going to ask my doc to give me a week of "good" eating and repeat the 1hr test rather than go straight to the 3hr. Anyone tried this?