Oh, sorry to hear this. Been a long road for you. Well, if you had CRF, how would they treat it? What things can they do to help with fatigue? Rather than making him agree to that name for what is going on, focus on how to help with it, what suggestions your doctor can give, etc. How is your nutrition? Improper eating and nutrition can result in pretty bad fatigue along with misuse or over use of caffeine. I've actually bumped up my energy level with regular use of a multi vitamin and exercise and a no caffeine regimen. How is your sleep? What other factors are possibly playing a role? Could the chemo have a long term effect of fatigue. Is this weakness or tiredness?