Are you addicted, or just dependent? (Many drugs cause dependence without being addictive - anything that causes withdrawal symptoms causes dependence, and caffeine does cause withdrawal symptoms.)
There are many different definitions of addiction, so if you're really curious, you might want to specify which particular set of definitions for technical terms like 'dependence' or 'addiction' you're using.
If it's worth saying, but not worth its own post, even in Discussion, it goes here.