Failed glucose test

Kelly
I'm a FTM and I'm taking my 3 hour glucose test on Friday. Just curious, for those of you that have taken it and "failed" what happened? Like how did you feel or what should I expect? I took the 1 hour test around 12 weeks and besides feeling a little jittery I was fine. About an hour later (2 hours after taking the drink) I was very nauseous and nearly sick. I honestly expect not to pass this time after pundits but idk...