I started carnivore last Friday. I've been meaning to try carnivore for a long time and I was always setting target days on when to start and the date would come and go and still no carnivore. So last Friday I just started, with no previous planning. Monday and Tuesday I fasted. It kinda just happened. A few years ago I did 2 years of keto, so carnivore and fasting felt like visiting a dear old friend I hadn't seen in a long time and it feels great.
Discussion
Sounds like a good experience. My body is like that too; it shifts gears into low (or zero) carb without a problem (I feel instantly amazing). But many are too sick to switch gears and, if their emotions are in the way, they end up quitting when they feel bad instead of sticking with it or getting treatment for underlying causes.