When I was first tested for my food allergies (in a method simular to Epski's), I was told that "anything can do anything". It could be the meat itself, a protien or compound within the meat, or it could be a reactions to the steriods, growth hormones, bulk enhancers or dyes that people taint the meat with before it goes to market. Anything can do anything.
I just wish the FDA would recognize meat allergies as a valid occurance and include them in the "FDA 8" (FDA's 8 recognized common food allergens). It would be nice to read a lable and have in dark print this product contains beef, milk, soy, wheat for example. For those that suffer, it would make their lives a lot easier because nothing's worse than missing something and having reactions from it later.
Epski, I feel for ya, guy. I thought I was bad off, but you... oh, man. I feel for ya, that's all I've gotta say. I truely feel for ya.