Hi Everyone

This is my 13th day of Atkins Induction, and I was feeling really good on week 1, but for some reason, I am now having the shakes and feeling dizzy. I have read some of the others story's but it seems like everyone has this problem in the 1st week, not the second. Is it possible that I'm having withdrawal? I have a habit of worrying, so some one please give some advice.