Having suffered from Anxiety disorders for a long time and being on all kinds of mood enhancing drugs I can sympathize. 
What finally cured me was a divorce and the flintstones. I hum the flintstones in my head if I get into any anxious situation. 
Drug free and anxious free for a few years now.
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it's amazing that sometimes that's all it takes.  Did a doctor come up with the flinstones thing?  kina creative.
I've seen interviews with other players about him and they all say the same thing.  Williams isn't by any means a hardcore drug addict and he does suffer really bad from SAD.  I feel for the guy but not too much sympothy here.  I think for millions of mullah I'd find another way.  Maybe his heart just wasnt in it anymore.