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When I inadvertantly eat gluten or dairy products I have several
uncomfortable reactions. My head/brain seem to go numb, throat dries out
and I have trouble breathing. I become incredibly tired (have slept for
up to six hours in the middle of the day) and irritable. I always experience
immediate fluid retention around my eyes, hands, fingers, ankels and
toes.  The fluid usually takes two to three days to clear.  My stomach
gets hard like a balloon has been blown up in it and I crave sweets.  I
know this sound stupid but Diet Pepsi helps to relieve the numb brain and
respiratory symptoms. Could it be the caffeine?