What does it mean when i am really hungry and start shaking. im starting to eat healthy and less?

Low blood sugar: When blood sugar drops a bit suddenly you can get shaky or a headache or grumpy or a stomach ache. Great that you are eating better! you will benefit from eating every 2-3 hours...Fresh fruits and veggies and complex carbs will keep up your blood sugar, and the "grazing" will keep you from being hungry and over eating and you will still lose weight (if that is one of your goals).