@zoffiel - absolutely... Nearly 2 1/2 years out of active treatment and I still get so tired. I have a finite amount of energy each day and it's no longer something I can push through. Work and kid's sports clubs always seem to expect a lot and I always try to help if I can. I used to feel really uncomfortable and think that I had to explain to people when I was saying no (or I would try to do whatever it was, anyway). Now, I just say "I can't" - if they want to push it further, that's their choice.