You will learn that not getting enough is what is making you feel bad, dizzy, lightheaded, headachey, etc. Even if you have to live on sugar free popsicles, at least you're getting liquids. They also help with the swelling that is makeing you feel like throwing up. Don't worry. It will get better. The biggest help for me was discovering this for myself. Try not to focus so much on what you are feeling. Good luck. I'm 18 days post op and now feel wonderful! Going back to work helped me take the focus off of me.