Had mine out last August, laproscopically. The fasting-after-midnight part made me very weak/dizzy before the surgery, which was in the afternoon. Even with anti-nausea medication right before the surgery I was very nauseous when I came to. They actually knocked me out again at that point, as it was so painful for me as I wanted to vomit but it hurt too much to try.
Once I got moved to a regular room, I was in a lot of pain. The gas they used to inflate my abdomen settled in my upper chest and even though I got up and walked around as much as I could, the pain was severe. They kept me overnight, and I even got morphine shots. (Morphine is my friend

)
I had to be discharged late in the morning, as my insurance would only cover a 23 hour stay.

So they wheeled me to the door and dumped me in the car. Hubby got to take me home and deal with me for two days of moderate bedrest.
I was only told to introduce solid food slowly, but I just made sure I avoided fatty stuff for a few weeks. I did have 1% milk and some chocolate two days after surgery, and was happy to have no reaction to them at all.
I still get odd internal twinges, the incisions are healed quite nicely (once I got some help at work after I stupidly did too much - my own fault!) and I eat fried clams on occasion without a problem.