JGE is correct, it will get better, but maybe not for a few days. But it is definately worth it!

Dr. Atkin's book says that if you are hungry, eat! As long as it allowable foods on induction. Right now you are trying to get your body to switch from burning sugar to burning fat - that is what the induction part is designed to do, and it sounds like it is definately working for you!

I like another quote he has: "If you are hungry, you are not doing the diet correctly. Eat!"