Do you know what is pain?

Do u know wat the hell is PAIN???
Darn it! My knee is extremely pain, it's lik a whole stack of steel crushing on my leg!
Actually the pain is from: Today evening, i went to the small field with a swing, see-saw and a slide. I went to play soccer with my 9 year old cousin. But we just pass the ball here and there(of course i'm better, hehe^^!) Later, we felt bored and went to the swing and hang around there. Not for long, i took the ball and put it below the swing. I swing up and down, playing with the ball beneath my feet. Then, i created a game. U will not understand. Me and my cousin played the game i created. First, we need a referee. But we don't hav any other elses to help us with it. So i started with the ball. Throwing up in the air and we two must swing and try to catch the ball. To get a point. We must flip up the ball onto our lap and role it to ur body without using hand. Ai ya~ U will not understand it, as i said. C ya?
Wait wait wait wait.............................

Do you know what is pain? I mean PAIN?