You ever get that itch in the roof of your mouth, and you use your tongue to kind of scrape/scratch the roof of your mouth? After I started paying attention to food allergies from this Yellow 6 thing, I noticed I would get this mouth-itch from certain fruits and nuts. Watermelon, almonds, and oranges. Super minor in the grand scheme of things, but never knew this itch was due to an allergy -- just thought it happened randomly. That is one thing that has yet to go away, but I can live with it at least.