So, this is a strange question--at least to me, but the last two times I ve eaten red meat I ve suddenly become sick about six to nine hours later. By sick I mean suddenly waking up vomiting leaving a painful burning sensation in my throat and sudden bouts of diarrhea lasting a day or more. The meat, by the way, was very lean. I am female, age 59, grossly overweight (about 100 pounds over). Other symptoms prior to this are swollen legs, tiredness, shortness of breath and mild chest pain.