Mustard - he had a hot dog, which included it as a hidden spice. He threw it up within the hour and had profuse rhinitis as well (sneezing/discharge from nose). We added that to the testing list at his next appointment. Chick peas, I honestly don't remember, it was so long ago. It may have been a rash around his mouth and itchiness. Shellfish is new. He was eating shrimp ok. He didn't really like it but I chopped it up small and gave it to him about once a month. Then I sort of fell off that...