Yes I had the sleeve Jan 21st an for the last two weeks I have been throwing up an always sick when I eat or drink water. Usually they say you aren't following the diet exactly, or eating too fast or too much. We can't eat over what is called a serving size even if it says only 1/4 cup. That's what we eat. Nothing different than the diet they gave us. In my case I had extensive hernias surgery an went back in thru, an they said it would probably take another two months. Bummer. Good luck.