Ok, first, start eating veggies. 20g minimum. Atkins is LOW CARB not NO CARB. Green leafy and healthy. You're even permitted some fruit (berries, peaches, some mellons).

You should be taking a multi-vitamin every day. A Calcium/Magensium supplement will help with muscle fatique. Try mixing NoSalt with your table salt 50/50 to up your potassium. And remember your water.

You should also go back and re-read your book.

Best of luck,
Nat