Living but dead

This pain I feel won't go away
I don't know where it came from
and why it's here to stay

Sometimes I think it will all pass
its just a matter of time
for it to die out at last

They say I'm hurting myself
by not telling anyone
but how do you tell someone when you don't know yourself

Some days I feel like falling apart
I am so far down
that it's impossible to get back to the start

They may understand what is going on in my head
but they have no idea
what is like to be dead