Mental Aspect of Hunger

Hi.. I’m new into the journey, but definitely feeling a change on many levels. I’m 18:6 and also mixing in some OMAD. I’m roughly a week in.. My mind feels awake, almost rapid. I don’t seem to sleep much (5-6 hours per night), and I almost have a need to always be cleaning, playing the guitar, or some kind of project.. doing something. Hunger is persistent, but it has become manageable, and …. It’s kinda starting to feel…. *good*? Is it normal for the hungry to start to feel like fuel? Almost like it’s keeping me in an energized state. I seem to be a weird early stage. Any feedback welcome.