I didnt have any problems with my glucose test but they told me that what you eat the day before really impacts what the glucose test reads so becareful what you eat the day before!! The drink they give you is so nasty cuz its super duper sweet and you have to drink it in under 5 mins!!! I felt like i had to throw up so bad but if i did id have to do it again so i just stayed strong lol!!!! Dont worry about it though youll be fine