I assume the chicken metabolizes some of it (or some other ingredient) into something that triggers that reaction in me. My family aren't affected by it, includ

I assume the chicken metabolizes some of it (or some other ingredient) into something that triggers that reaction in me. My family aren't affected by it, including my daughter. Its apparently not common. I dunno how likely that is; the egg shouldn't have more than trace amounts of any contaminants in the chicken; the egg is filtered a step further than the meat is. I found that salt enhanced the headache potential a lot, but with "clean" eggs it doesn't matter. but after this long i dont put salt on 'em anyhow. Also, I grew up on a farm and ate a lot of eggs as a kid, those chickens weren't fed anything but some corn and were otherwise free range, so perhaps its a trained sensitivity?