Wow Tracy! I have that problem too, but I have always attributed it to my Raynauds syndrome. It affects my hands and feet, nose, & tongue. You don't find much supporting that if you research it online, but it happens to me. If I eat ice cream, I sound drunk when I talk or like I have a speech impediment. Or a cold drink with lots of ice, or an Icee!! Do you have any symptoms of Raynauds? Hands or feet that get really cold, much colder than the surrounding air temp should make them? Do they turn white and/or blue? Do they do this when under stress or when exercising?

Just wanted to throw that out there. Good luck and I hope you can get on the right track to feeling better!