Why?

I don't know why but I'm not even three weeks into my second semester and already, worn out! I'm so tired! I don't even know why!!!! I'm not doing things all that strenuous. But I'm all the sudden really tired and just want to sleep all the time! To top it all off, I haven't been hungry at all lately! I have to force myself to eat even the littlest bit!

Anyway, this is very short, but it's all I have to say.