I lost 19 lbs prior to surgery by sticking wih the preop diet and my surgeon said it made a huge difference and it is why I'm not having as much pain after the procedure. Believe me you will thank yourself for giving yourself a leg up on this journey.
I am on day 5 of mine and I think day 3 was the worst!!! Today I'm feeling weak and sleepy as I am doing a 15 hr water only fast for lab work today at 12:15. We got this! Good luck! I know that this will all be worth it when I am sleeved on 05/13/13