I actually went and signed in so I could reply to you. :) If this is all very recent, it could be related to spring allergies. She may be reacting to more things now because of the pollen. Take away everything she tested positive for or reacts to. When all the springtime stuff is done, try to give her one thing one time and see if she has a reaction. But yes, take corn away if she is reacting. Her body is trying to tell you something. Allergy meds may help as well. If they have no corn.