How could a tuna noodle casserole make my wife this sick?

My wife had not eaten anything the whole day. for dinner, she prepared a tuna noodle casserole and honestly, she pigged out on it. within two minutes of finishing her meal, she was lying on the floor and asking for an ambulance. she thought she was about to die and so did i. my first thought was to call 911. i did. my second thought that she was having some type of allergic reaction. not knowing for sure, i gave her one 25 mg of antihistimine. almost instantly, she began to feel some better. i gave her another 25 mg antihistimine and the ambulance arrived. the paramedics gave her a sugar glucose injection and this made her feel even better. she was transported to the ER and checked out. her blood results came back and as suspected an allergic reaction to tuna fish. it was explained that tuna fish are bottom scavengers of the ocean and that ocean bottom particles sometimes cling to tuna fish. this is normally cleaned off at the processing plant, but apparently this tuna fish was dirty. have you had a smiliar situation with tuna fish? we now carry antihistimine with us all the time and tuna fish is off our menu forever.