Tuesday will be 3 weeks since surgery. I have lost 33 pounds. In the beginning I felt GREAT with lots of energy but towards the middle of the week I started feeling fatigued and very sleepy. I make sure I get my water and protein but I'm still on the full liquid phase so there's not much to choose from to eat. Any advice??

Electrolytes.

Tuesday will be 3 weeks since surgery. I have lost 33 pounds. In the beginning I felt GREAT with lots of energy but towards the middle of the week I started feeling fatigued and very sleepy. I make sure I get my Water and Protein but I'm still on the full liquid phase so there's not much to choose from to eat. Any advice??

Honestly it will get better over time,I'm 5 weeks out. But yes to the electrolyte too. My Costco sells packs to put in drinks. Or try Gatorade zero. I also take collagen and b12. I walk a lot and and back to weight training. Sometimes that makes me tired to but overall my energy is better with activity.

I was tired off and on for the first couple of months, as I recall...

I was the same way, turns out I was low on iron and I had been forgetting my prescription ferrex. Hope you feel better soon!

Me, too, was super low-energy after surgery but now at almost three months post-op my energy is finally returning to normal. I'd been tired all the time and couldn't accomplish much during the day, plus had to sleep longer. Now I feel much more normal and eight hours sleep is plenty. It may be simply the body needing time to heal after surgery. Don't underestimate what the surgeon did - really changed things and imagine how hard the body needs to work to heal.

I've been diligent about getting enough protein, taking my vitamins/mineral supplements, drinking enough water, and getting my electrolytes. Initially I wasn't getting enough sodium - my labs came back low probably because processed foods are now a thing of the past except for some Boca products and the like, so now I'm adding a couple pinches of salt to my Zero Gatorade and water.

I'd also been slightly anemic prior to surgery probably due to reduced kidney function but now my kidney-related labs are much better, plus I've been taking iron supplements so I'm no longer anemic. Surely this has a lot to do with having more energy as well. The kidneys make erythropoietin, the hormone that triggers manufacture of red blood cells.

Don't worry, your energy should return in time. Watch your labs and make adjustments to diet and/or supplements as necessary.