Also if I don’t eat right as I feel hungry I’ll feel as if someone has gut punched me. I get absurdly hungry.
As for the "gut punch" though, sounds like gastritis or something. Unless you're being metaphorical. For me, water helps when I'm fasting and stomach pains start.
Likewise, I've noticed an effect develop with artificial sweeteners where I can have small amounts without difficulty, but if I start consuming it several times in a 48 hour span, I get cramps.
In periods where I've become addicted to carbs hunger pain is much stronger, but I've been able to keep it down for many years now. So if you're getting it intensely, your gut is probably still reactivating to its old profile.
I believe restriction in the regular diet is one way of correcting it while staying in a routine. But I have also experimented with fasting, intense exercise, hot/cold contrast in the shower, and breathing exercises, and the common theme to each is to challenge homeostasis in some fashion. Obviously there's always some danger in going too far, but if our norm is total comfort, we can definitely drop some aspect of it from time to time.