Ugh!!!! 😩

I did my gestational diabetes test on Wednesday. I fasted and had nothing but water even though they said that I could eat. Normal range is 70-130 and mine was 158!! Now I have to do it again but for 3 hours, I barely made it through the 1 hour without passing out. I was dizzy and lightheaded and shaky. Have no idea how I'm going to get through the 3 hours! I don't get how the number is going to be any better cause I fasted for this one.