AH What is it this time?

So, I gots a lot of allergies. Not too many, but lots.

Milk, walnuts, pecans, shell fish, aluminum and other lesser metals (reactions bad enough to cause airway/ breathing distress)  latex, iodine and now something that I can't figure out!!

I know what I ate and can pin point the item. It is at the Cosi restaurant. I had soup and their whole grain bread. oh how I regret it. I got a rash, oh the rash.... all over my face and arms, a head ache, and swelling in the mouth about 3 hours after consumption.