Yes, this is really a strange one. I have a line down the center of my tongue.....where my tongue is shedding. I kept thinking I had a hair in my mouth. I felt like some kind of nut trying to get that hair out!! Over and over. My tongue is sensitive.....but I have had bouts of that; however, my tongue has never shed. Any body else ever experience this? I don't know if I should worry about this or not. Several things could cause it???