Atkins Day 4 - Im feeling hungry :( help
 

Hi guys.

Today is day 4 with me on Atkins.
I followed instructions on keeping under 20g carbs a day.
Got all the necessary protein and fat intake it requires.

Day 1-3 was easy peasy.
Then came today.
I have this weird carb craving that was non existent on Day 1-3 and I feel hungry.
My tummy is rumbling but not in a im gonna starve kind of way.

Has anyone felt this before?
Is this induction/keto flu?