Personally it is a strange thing. Diffcult to do over 24 hours but easy over a few days. Once you get over the head space of "im hungry must eat!" It turns into "im hungry, oh well".
But this is a sample size of 1 and results definetly vary wildly between folks.
That's not an eating disorder. Just because you're cold doesn't mean you need to put on a sweater. Learning not to let minor discomforts bother you builds discipline and character.
Anorectic are very dosciplined and proud of their ability to not eat. Hunger not being "well so what" is normal healthy biology. It is not just discomfort. It is biologcal mechanism to prevent very real harm.
Yhe issue with anorexia is that it works as cycle - if ypu have genetic predisposition, starwing affects metabolism, your discomfort about food gets worst and you are in it.
Fasting is great because you live off of your muscles. Keep at it and you will loose so much muscle, you will develop an eating disorder. The stomach and intestines are muscles too.
My understanding is that if you are healthy and you fast, it's great.
If you are actually ill and fast it's still great but it only hides your illness and you are on a very bad path (eating disorder)
But this is a sample size of 1 and results definetly vary wildly between folks.