@des46893, Have you started any kind of exercise/activity program in an attempt to counteract the fatigue?

One thing that my transplant team stresses is exercise to promote bone health since our immunosuppressants can mess with bone density. If you have been inactive for a while, be prepared to start out slowly.
I find that on days when I exercise, that I have more energy throughout the day. But if I over do it, I am double exhausted. I had to learn how my body reacts and how to balance what works for me. But either way, I sleep soundly at night!