I'm 13, and recently have been VERY tired. Just yesterday, I slept over 13 hours, and actually didn't want to get up- i was still sleepy! I also get this dry feeling in my throught sometimes, which cause me to drink lots of water. I have lost 7 pounds, but i think that is because of my diet. I also think I have a yeast infection, because I'm realeasing a white, smelly dischrage everyday about two to three times! I also get heart burn, and random pain in my arms, legs, back, knees, shoulder, and feet. Sometimes I feel so weak I can hardly walk. I also get a fainting/ blacking out feeling sometimes. It normally happens before lunch time, or in my last period class. (arund 2:00) Could I possibly be diabetic?