Blind Depression

I don't know whats wrong with me,
I just feel like I'm not free,
every night b4 i sleep,
all i do is think and weep,

i always smile but no1 sees,
that really inside I'm just so empty, no1 know that I'm suffering depression,
i guess i just made the wrong impression,

i want 2 tell some1 that my happiness is gone,
but every time i speak,
all i do is tremble and become weak,
no one ever sees me cry,
nor do they know i wish i could die,

but then i let it all go,
and never let any of it show....