I noticed that egg whites make the back/base of my tongue numb. Is this a food reaction? Well, obviously since it happens after I eat egg whites. My dad, who dabbled a bit in a food allergy clinic in the 80's (he's a retired ob/gyn) thought it was a fluke, but I tested it and it's not. Does anyone know if this is a common reaction for food sensitivies or allergies? I'm just concerned if this is perhaps a precursor to the throat swelling shut reaction people can have due to allergies. (If it is, I'll be even more diligent about avoiding eggs!) And a related question: I've noticed my lips can become numb after having a Diet Coke (I attribute it to Nutrasweet since it doesn't happen with regular Coke). Is this a common reaction for food sensitivities? (Actually, I just noticed my lips are numb now and I haven't had a Diet Coke for days.) Both these symptoms became noticeable after avoiding the "offending" food for 6-9 months. Before avoiding the food, I didn't notice the symptom. Thanks for any insight!!!