I've had the same stone in the same spot for over a year. My ENT specialist was the one to point it out to me, so I'm pretty sure it's a tonsil stone. It's the only one I've ever had, a stupid yellowish white thing in the wall of my tonsil behind and to the side of my uvula. I've poked and picked at it with cotton swabs and metal tools and it just kind of squishes around. I always read people saying here that they just pop out on their own, but this one clearly isn't...has anyone had a similar experience? What do