Advice for glucose screening nausea

Hi all! Second time mama here and it’s time for the dreaded sweet drink. With my first pregnancy I was nauseous and vomiting once I got home from the appointment but passed with flying colours. For some reason this time around I cant seem to do it, I’m now being booked in for my third try because I was sick both times within 30 minutes of drinking the drink. I’m not only annoyed with myself but I’m sure my healthcare providers are tired of my bull***t too. Does anyone have pointers on how I can keep it down? Again I had zero issues with my first pregnancy.

My midwives advised eating a good meal before and after going. The lab that does blood work where I live is a completely separate practice all together from the doctors/midwives offices. They have said with their protocol I absolutely HAVE to fast before my test and they will reschedule if I haven’t fasted for 12 hours prior. I also can’t sip water during the hour I wait either. Alternative options such as an at home glucose meter or things like the jelly bean test are not an option where I live.