Exhaustion

My body is betraying me. Every night I have dreams that make me feel exhausted when I wake. I'm probably just lying to myself by saying I don't have anxiety about this whole cancer thing. But what can I do? I'm trusting my body that it needs rest and relaxation. I'm listening to it. I may get in trouble because I'm listening to what my body is telling me, its telling me I need sleep, its telling me to prepare for the worst. Its telling me to try and do my best to carry on. That is all I'm doing, it is all I can do. But it exhausts me.