A world of unknown sadness...

My depression has been acting up for some reason this week, I randomly cry sometimes...my heart aches....I wish I knew why I feel the way I do right now. Is this pain I'm feeling a sign? Will this make me stronger? I wish God could explain to me why I'm going through this..my emotions are all mixed up..for once in my life I would like these mysterious burdens to go away..it's as if a part of me is gone...what is my life coming to?! Can I get through this? I want to know! Maybe someone will be able to answer my prayer, and lighten my load...