sounds like you achieved a lot! feeling lighter, losing weight etc?! How does it get any better than that.
The thing is - it isn't about 10 days - it is about a sustainable do-able balanced lifestyle for you. Not for today, not just for christmas - hence Lifestyle!

did your rice "eating plan" include only grains? or was it a broader (and what I would recommend) macro meal plan?

some of the euphoria tends to come when people only eat grain and mostly brown rice and chew it very very very well. I feel most of the euphoria is related to that - it triggers certain hormones and brain chemicals.

however balanced macro meals balance your brain chemistry over time in a more realistic manner and don't cause the possible pendulum swinging the other way which can happen when one consumes too austere a diet.

and how many people are searching for that - balance.

sounds like you are well on your way. Don't live your life by what books tell you - blaze your own trail. Use them for guidance. Discover you own path!
keep us all posted of your discoveries and joy!

ilanit