Earlier quoted context omitted.
what kind of fasting did you do?
Just not eating for 2 days. It would throw of my "rhythm" and I would overeat for days until it balanced out again. Maybe my appetite is larger than most people.
What worked for me was resetting the rhythm itself, by under-eating over long periods of time, 2 weeks at least, up to 1-2 months. I keep telling myself hungry is the new normal, and in the long run it becomes the new normal. Under-eating is not even that hard if one goes mostly veggie, that is eat fruits / veggies / eggs / cheese / yoghurt / fish and skip sugar / meat / pasta / bread / rice / deep fried *. Few more tricks: always have a bottle of water nearby, take time to have a meal [15 minutes latency for full signal to propagate to the brain], snack lightly on fresh fruits, veggies and yoghurt along the day [never go crazy hungry].