Assuming there's no organic cause, why not try looking at self-help books? I found the following useful: http://www.amazon.com/Happiness-Trap-Struggling-Start

Assuming there's no organic cause, why not try looking at self-help books? I found the following useful: http://www.amazon.com/Happiness-Trap-Struggling-Start-Living/dp/1590305841/ http://www.amazon.com/Happiness-Trap-Struggling-Start-Living...