Since April, Nadia Cwiach has spent every day with her mouth and tongue on fire.
"When it initially started, it was like a burning down my throat. I thought it was reflux or an allergic reaction," Cwiach said.
But after a series of unhelpful allergy medicines and a battery of blood tests, Cwiach's doctors found nothing physically wrong with her.
For Cheryl Jones, it was two years ago, when she was chewing cinnamon-flavored gum.
"I remember chewing the gum and thought that the burning was...Full Story