Fasting

What is it about fasting? My first thoughts this morning - "I have to fast. Clear liquids only. Is coffee a clear liquid? It is if I drink enough water." Because my endoscopy is scheduled for the afternoon, I was free to drink clear liquids up until 8am. I drank 1 cup of coffee and 4 bottles of water. And a couple of swigs of pickle juice. Don't ask about the pickle juice. Now I'm just .... fasting. It's hard to do anything when all I can think is "I'm hungry. I'm thirsty. Are we there yet?" I have yogurt ready and waiting for when I get home. Okay, now I'm trying not to think about yogurt.