Help! My biggest fear is being hungry. I'm having my surgery on March 2nd, and have literally tried changing how much I eat over the past week, and I feel as though I'm STARVING. I get headaches, feel tired, and my entire body starts to hurt. Is this some sort of food withdraw? I'm not even cutting down drastically, just a little. Am I alone in this? I'm scared I'll feel this way during pre-op and initial post-op. Any advice, or sharing your own stories would be most helpful.