Taking my 2nd GD test. They drew the 1st hour blood. Have about 30 mins for the next one. Feeling…

Taking my 2nd GD test. They drew the 1st hour blood. Have about 30 mins for the next one. Feeling quite horrible. Feel dizzy, like I am going to pass out and vomit tmi sorry. I have never felt this bad with this test and I have had 4 prior pregnancies. Hoping I am - but fearful of a +. Any mommas with GD, how did you feel when you did the test?