Wow Debra,
I am not a doctor but it sure sounds like you are allergic to whey. Check out this website.....Symptoms of Allergy to Whey | eHow.com
I checked your profile and don't really understand why he is insisting on an all liquid diet right now. Your surgery is Aug 4th and I guess he is trying to ensure the all goes well and to shrink your liver down beforehand. He definitely has you on a liver shrinking diet but from all the research I have done on this website and through my doctor and others, your bmi is pretty low for such a drastic diet. Usually, if you begin with a bmi of 40 to 50 I have seen this. Why can't you get Protein from lean meats or eggs and Fiber from steamed veges? Call him today and tell him what is going on with you physically. And if you aren't satisfied, get a second opinion. Trust your instincts. If he talks down to you (unfortunately, some have power issues), find another doctor. You are worth it!
Let us know how you are doing!