Thanks annie, I probably do need proper food allergy testing. All of my kids and me have things we react to. The only one that was properly diagnosed was my son with his dairy allergy. It's just so scary to see a baby get a reaction like that. I'm in no big hurry to give it to him again to test the theory though. I should however find out if it was the splenda or not. I have seen him react that way several times but everything had splenda in it so I just assumed that is what it was. That sucks about the grain mites. That's not really one of those ingredients you can identify on the ingredient label. If only we knew half the things we unknowingly put into our mouths!!!!!