I had my surgery on March 10. I'm so sore and very tired. I'm able to stay awake for a few hours before I need a nap. Drinking is hard for me. I want to drink things with Protein, but they taste terrible. I like drinking Water, but I get cramps and gas when I drink. They recommend by day 3 post op I drink 6 oz per hour. This seems like a lot. Tomorrow I have to drink 8 oz per hour. Any suggestions?