anger turn inwards.......depression

Some believe that depression is really anger turned inwards. This might be something i want to seriously consider. How well do i handle anger? Do i express it at the time or bury it? Does it make i feel uncomfortable? Anger doesn't have to be the enemy. It can be an excellent signal that something isn't right for me. I must try viewing it this way and seek out ways to communicate it when it occurs. Stuffing it can only make things worse.