question: Im 17 and I have been feeling very weak lately, I thought it might have been because I have been having trouble sleeping and very busy. Because of these things, I thought they have been making me feel achy, dizzy, weak, and very moody. I also recently started craving blood. I had never thought about being anemic until someone asked if I was. I looked up the symptoms and was not sure how to know if anemia could be whats causing this, or if it is just a phase.