I have had the same problem as you when I wake since I had my colon removed. And being really exhausted easily as the day rolled by.
I finally had my blood tested for everything about a month ago. I mean every morning I was waking and feeling like I had been run over by a truck.
Well come to find out my iron levels were low. I have always had high iron levels. So it was a surprise to me. Having it removed has something to do with iron absorption. Read up on it and you may want to be tested.
It has made a big difference in my energy levels and how I feel when I wake. I don't feel so bad. I am not dead tired after an eight hour shift. I didn't realize how important iron is until I read up on it after I found out I had to take an iron supplement. But even after three weeks of taking an iron supplement I can feel a noticeable difference.
I am just happy it was something simple. I wouldn't want to live the rest of my life being chronically fatigued.
Richard.