Your trouble sleeping may be that you don't need as much sleep.
I've found that fasting saves the body a lot of energy that it would normally be using to deal with the metabolic impact of eating. Once you are deep in ketosis, it "may" be that ketones help repair cells/take care of processes that would normally occur while asleep faster and we don't need as much sleep (very common to hear/read about).
If you are really hitting the wall, I suggest the two keto dudes website forums or other fasting websites to help you "see" if you are "pushing" too hard or simply dealing with the "usual" (not that much of this is the usual...).
Good luck!
I am eating keto post fast and my wife and I will continue to do so due to being insulin resistant (family genetics, gotta love em!)
Today was day 7. I went to an outdoor concert and the smells from the Food Trucks were killing me! I almost broke my fast.
I stayed strong though.
Thanks for the keto info. I have some keto sticks. I am probably not going to waste my time with them. I am not eating anything or cheating, so I figure I will be in keto eventually. I kind of felt like I had the keto flu today, but it could be the lack of sleep.
I am going to break my fast on the 21st of April, which should be 19 days. I have some schoolwork to do (PhD Candidate) and I am having problems with motivation and focus. Hopefully i won't have to break it before then.
Oh, I am drinking 2 cups of black coffee a day. I know that is cheating (Kind of), but I am not ready to give up caffeine. I am addicted to it, and anytime I have tried to skip a day without any coffee, I had a pounding headache.
Thanks for the encouragement.