Had my left kidney removed Nov 16th (Open surgery). It was a textbook procedure. Home in two days. Back at work in less than three weeks. Even started running and going to the gym again (light stuff). I thought I had this thing beat completely. I started getting tired last week. I have since stopped all activity besides work. I’m sleeping up to 10 hours a night and the fatigue still seems to be getting worse. Physically I feel outstanding. No pain whatsoever and I can do all activities with no limitation. I know it's winter and I have time to get ready for all of next summers fun and games, but I am very impatient with the recovery thing. When I am awake I feel like I can run a marathon. Problem is I just can't stay awake. I'm sure it's my own fault and shouldn’t push, but wanted to know the general consensus on this. Are we talking weeks or months?