I dk about glycogen, i dont think i ever go without food long enough. I get dizzy and anxious before i run out of glycogen, i think.

But i do have been diagnosed with atypical gallbladder. I dont recall, do you still have your gallbladder? Because that gets messed up when you lose weight quickly. Gallstones form. I think thats part of the reason they tell you to drink a lot of water, to keep the stones in solution. If they fall out of solution, they can become trapped in bile ducts, and then you feel miserable, as bile then cannot flow freely to help digest your food. Personally i massage my right abdomen when it sounds gurgly, as long as it does not make me puke. I used to have miserable symptoms, fever and a backache below my right shoulder blade.