Yes, there does appear to be two different issues with coffee- the allergy to the coffee bean proteins and the sensitivity to caffeine. If you put "coffee allergy" in the search, you will find a fair amount about both.

I think that I am over my caffeine sensitivity now that I have been 7 years gluten and dairy free. According to what I have read, it can take a full year for all of the casomorphins and gliadomorphins from dairy and gluten, respectively, to leave your brain and for the neurons to return to normal once these foods have been eliminated from the diet. Now I guess I'm down to the coffee allergy, since the caffeine in tea or the rare cola does not bother me at all. Gotta love those casomorphins and gliadomorphins.

John