GD fasting. Please help

En

Good morning! I just don’t understand with my GD test today. I have to fast for 2hours and take the drink and fast for another hour. They only allow me to drink a little bit of water during the fasting. What is a little bit? The receptionist told me just a little sip from a cup. And I was like in my head “I drink a gallon a day” I need more than a little sip. 🥺

They send me an instruction to fast for 2 hours.