Hi, I am 14 years old, and I am frequently facing an annoying problem on my tounge. What happens on it is that for some reason, a small crater appears on my tounge (usually on the far left, right and tip). It is always itchy, and when i scratch it with my teeth, it hurts ALOT. This occurs whenever I dont sleep well, dont eat well, or when I'm not healthy. I really want to cure this problem, because it really effects my learning. What should I do? Is there any experts out there? If there is, please, let me know what is happening, and how to cure it! Thanks! Please tell me asap!