Often, you will get pain when you're trying hard at something your body isn't used to. For example patw. When you try as hard as you can to get the ball three revolutions around the ball you will feel pain. That's the logic way, but of course: No rule withouth an exception. So you can be lucky. I don't know how many percent that felt pain when they practiced patw for the first time but i guess most people did.
When your body is used to the movement, you won't feel pain (Again, no rule without an exception). And Patw is not the only trick. I had alot of pain when I didn't know the right way to do Tatw (A long time ago).
