The trouble first began about 15 years ago. At that time, this only happened maybe one or two times a year. It has become more frequent now. For the past week, it feels like there's something caught in the lower part of my throat. It's also very tender to the touch. I often have the urge to clear my throat & that gives me a little bit of comfort, but not alot. It is painful at times & I'm concerned because it has been present for such a long period of time. I've gone to different Ear, Nose & Throat doctors and I've had the Endoscope procedure done several times but I still don't know what could be causing this.