Undefined Love

Why is everything so heavy on me.
Why is it that sometimes it's hard to breath?
Why does the memories keep running through my mind.
Why does my lonely heart ache all the time.
I crave your attention and wanna feel your love.
Now I'm stuck in this lonesome life you walked out of. 
So many laughs and good times we spent together.
Now you're out of my life, you're gone... forever. 
Why can't I get over you, why can't I let my mind be free.
I'm trying to get through the sadness of it all, why is everything so heavy on me?