I agree with what Sandra said. You shouldn't force your body to eat what is obviously making it sick. Go meat-free for awhile, perhaps try eggs or fish as a protein force, then reintroduce different types of meat into your diet, chicken, pork, the blander meats, then red meat. Maybe you should look into purely grass-fed and organic meats too. I know plenty of us feel fine eating grain and corn-fed meats that have been treated with growth hormones and such, but some people are more sensitive to these things.
F 28/5'4/100 lbs
"I'm not a psychopath, I'm a high-functioning sociopath; do your research."