I\'m not ok!

You ask if I'm OK
and I say yes
but I'm not
don't believe me
for my lips betray me
you ask if I'm OK and
I long to shout
no help me please
but I walk on
don't believe me
my feet deceive me
you ask if I'm OK
and I slowly nod my head
but don't believe me
for my head
has turned against me