Internet addiction: is it a clinical disorder?

If you become addicted to the internet there are a lot of problem that can result, just like an excess of anything. You begin to use your eyes too much and thinking becomes a nasty habit. Worst of all is thinking about thinking...hmmm, lol. But there are no disorders in the world of reality as it is an expression of ourselves as humans. The more you start to categorize things the more you put things into boxes which can lead t a very unfulfilled life.