I am 2 days away from surgery and am so miserable right now on my pre-op diet. I am only allowed up to 4 protein shakes per day and everything else is sugar free low sodium clear liquids. I have a horrible headache that won't go away, awful stomach pain and feel light headed, dizzy and tired. I am just trying to make it two more days! I'm more worried about my actual surgery day now. I can't have ANYTHING after midnight tomorrow night (Wednesday) but my actual procedure is not until Thursday at 2pm. I'm afraid I will be dying of thirst and unable to even have a sip of water. Anyone else have a late surgery time and go most of the day without even water?