Dear X, life is too short. I hope that you will go see a professional in the near future to best make the determination if you suffer from clinical depression. Odee is correct. You can have every facet of your life be seemingly idealic and still suffer from major depressive episodes. The good news is that you don't have to suffer through this entirley alone. Medicine and in some cases ongoing therapy go a long way in helping one manage depression.
In the meantime, this forum is a resource! Keep up posted and good luck.