I have not eaten red meat (like beef or pork) in like 10 years. I sometimes eat chicken and turkey, and I have always been fine. Now, for the past few weeks, I get really nauseated when I eat chicken or turkey it seems like. I can eat stuff like rice or bread, but no meat without feeling sick. I would take a bite or two of turkey or chicken, then feel really full, then a little while later feel really sick. am I allergic to protein or something