I had a class yesterday that went over all the things to look for that are not normal, and the things that are normal. I am with Gomekast you need to go to the ER. Or call the Physician on call at your surgeons office,. I would bet that you are dehydrated! You shouldn't be so weak that you cant stand and your not able to hold things down you need to be seen. I was told as well, that if you are eating the things you are suppose to and you are throwing up.....seek medical attention. Throwing up foods that you can have is not a good thing. I have seen on here that some people say oh its normal....well my surgeon said NO its not normal to throw up foods you should be able to tolerate. I am not sleeved yet but I to cant have protein until weeks 3/4