a different kind of raindrop?

I have spent way too much of the last couple days lost in thought, and also drenched in tears.  Suffice to say?  I have a lot on my mind.  It isn't depression.  Depression is different.  Depression I hardly have the will to cry.  There might be some exhaustion involved, but that's not really it either.  I'm sad.  And I don't know how to stop the tears from flowing.  It's making me re-consider a lot of things.  What in my life do I need to do to be less sad?  New job?  Maybe.  Today I certainly felt so.  I feel like in most parts of my life I give and give and give until it's all used up and there is nothing left.  I feel that way in some of my relationships, and I feel that way at work.