What's Wrong With Me?

When I wake up in the morning, my neck hurts and I feel stuffy. Throughout the day, I feel weak, and somewhat shaky. Random parts of my body start to hurt, and now I have a runny nose. It's not a cold, because it's been going on for a while. Today, I just started to get a runny nose. Some parts of the day, my arms will hurt, my sides will hurt, my legs will hurt, my hands will hurt, and etc. Am I fatigued? I go to bed different times every night. Sometimes it's 11, other days, I go to bed at 1:30 in the morning. I am 13 years old, and a girl. I text ALOT. Can this be why my hands are crampy? School is out for me, so I don't have to get up early anymore. But what's going on here?