Wheatlover posted a topic in Celiac Disease - Pre-Diagnosis, Testing & SymptomsHi All, I am awaiting my TTG test results but I know deep down ( way down!) that I have at the least, a gluten sensitivity. I am wondering how much gluten needs to be consumed for a reaction. I am sure it differs from person to person but would a crumb cause a reaction? I just had a banana and peanut butter for breakfast and feel horrible...I am slowly trying to go gluten free but it is sooo hard. However, I feel so bad lately that I know I have to do it. Would love to hear your input.