That which cannot be named.

Sometimes, its collapsing in a fit of tears.
Sometimes, its darkness at the end of the tunnel.
Sometimes, its inexplicable but very real pain.
Sometimes, its utter despair.
Sometimes, its extended bouts of apathy.
Sometimes, its languishing in low mood.
Sometimes, its desperately wanting to be seen.
Sometimes, its desperately wanting not to be seen.
Sometimes, its complete emotional exhaustion.
And sometimes, its nothing at all.