re:Intolerance, allergy, sensitivity, hypersensitivity. What is what?
From my POV and experience; the difference between intolerance and allergy is 1) Intolerance affects the tissue/organ that has"direct" contact with.
2) Allergic reactions trigger swelling
I have a pretty bad intolerance for Sulfa's - causes my throat/Esophagus to bleed, quite a bit, really it just shredded my throat. I couldn't swallow anything w/out terrible pain, lasted about a day. I'm also allergic to plenty of antibiotics but my reactions were mild, basically got hives.
Hyper/Sensitive - the Happy thru tortured face rating system works better. Hope that helped.