Marti don't be sorry for asking questions, if you don't, you won't learn. You can bet your bippie I asked about a bazillion questions over and over. Atkins is a new way of life so ask away.
The only thing I can remember feeling the first couple of weeks was tired, I was very tired, but DUH !!!!!!!!!!!! I wasn't taking any vitamins, so please do yourself a favor and stock up!!! I learned my lesson lol.
I've been on atkins since July and today I feel really good, I make sure I drink ALOT of water and pop those vitamins and I'm okay.
Just a suggestion......stay away from any kind of low carb chocolates and bars for as long as you can....they only trigger cravings for the real stuff AND they can give you bad gas
Good Luck !!