I finally figured out this was the source of all my issues too. I have some tolerence which I can play with, but a bowl of pasta or a beer is enough to raise hell.
Has anyone found a gluten-free beer that actually takes like beer? I am just so sick of people telling me "oh I found/made you gluten free _______!" the effort is really sweet, but the results are always so sub-par. My roomie made gluten free brownies made from chick-peas last night. GROSSSSS!!!!!!
I guess once I forget what the real stuff tastes like I will start to like all the imitations, but until then I'll just budget my intake closely.