The only way to know for sure is to be tested or eliminate the food for a week and then reintroduce it. Do the hives return? You can get a simple blood test for wheat and gluten for less than $20.00 It's a blood test and you don't need a doctor's request in most states.
Somehow you started your own thread instead of replying to one??? You might want to go back and hit "reply" to the thread you were reading so the OP can see your post.
"Let me see you stripped down to the bone. Let me hear you speaking just for me."