I'm on day 2 (of 7) of the pre-op diet and it's seriously killing me! I feel nauseated and lightheaded all day except for about an hour or so after I drink a protein shake. I'm trying to stay distracted but it's hard when I feel so awful. I don't even trust myself to drive because of the lightheaded feelings. I don't have energy to do anything but lay on the couch and watch tv, which of course has lots of commercials for food making me feel more miserable! My daughter has a school concert tonight and I wish I could find an excuse not to go (but of course I have to go anyway!) which makes me feel really guilty. This really sucks!