Feeling a Little Weak

I'm feeling a little weak today. I don't know what's wrong with me. Maybe it's lack of sleep or something. My legs are a little slow, I can't seem to think straight today. Notice the lack of posts lately? I'm even typing a little slower. I'm not sure if I'm sick or something, but oddly enough, it's just a feeling. Trying to push my body to do what it usually does has no side effects. Weird.