I don’t know the answer to your questions, but as a kid I had the same thing happen with my tongue and mouth. Since I was a kid I never told anyone, but I remember it happening at weird times. It would even happen in the middle of the night. The sensation was so weird and uncomfortable that I still remember how it felt. It would rarely happen when I ate, but the only food I am allergic to is swiss cheese. I also, have bad reactions to bug bites. Mosquitoes love me and I get huge itchy welts from them, and my children do too. Now that I know I have EDS I know it is all related. Maybe Dr. D can answer you. I want to know the reason too. Is it common for those with EDS to be Mosquito magnets?