So I'm not the best with brushing I will admit that. But recently I've been noticing some brown decay marks on my teeth, and some pain in one some of my teeth!! I'm so scared. I'm worried they are gunna fall out, or decay right away, I'm going to go to my dentist but I'm sitting here in my room crying and need someone's help and guidance!! I'm so scared I'm only 18!!! I can't have teeth fall out at 18!! Someone please help!!