This is kind of a small thing, but I occasionally get this tingling feeling in my tongue. The instances are isolated, far apart, and short lived, so I'm sure it's nothing big. Might happen three or four times a year, and it doesn't last longer than a minute or two. It's usually a rather sharp, sudden pain that lasts only an instant, followed by slight tingling. I'm wondering if it may be a slight food allergy. I have no clue what to, though.