Again

Yes, that's right. I'm sick again. I hate it. I'm tired, my muscles are sore, and I have a killer headache. When I got up from lunch this morning (my first meal of the day), my knee started hurting. It was like I hyperextended it or something. But I just slept, took a shower, and went to lunch. Why won't it just go away? Maybe if I get lots of sleep tonight....