Fatigue and Other Pains

Today I don't feel like doing anything.  I'm just tired.  It is kind of weird how this works  See, sometimes I am completely wide awake and then suddenly I get this tired feeling all over my body.   Once i get that feeling, I usually sleep for a few minutes.  My wife says it most resembles narcolepsy.  All I know is it is really annoying!  Yet, I try to remain pleasant, up beat and optimistic.  All the While I have to deal with this terrible PAIN that just won't go away.  Despite the high level of narcotics that I am on, the site from where the tumor was removed really freakin' hurts.  There are days when I am pain free.  Most of the time, however, I live with chronic, severe, back and chest pain.  Lord will there ever be any relief?