same , i to have been doing atkins and switched to WW.
I lost 3lb doing it in first week, i do think its an effective diet but you need to be commited.
After about 4 days i was running out of ideas on how to make all this fatty food i was consuming tasty and nutritional. I started getting the "induction Flu" headaches aches and pains etc. which was a good thing as it was a sign i was doing it properly.
However i couldnt shake the way all the rich food was making me feel, i felt like my insides were rotten didnt feel healthy at all.
and above that i started to miss my carbs.
Its a good diet if you want quick results but i chose to do WW as i like the freedom it gives you and its realistic to my life style. When im restricted i fall off the wagon.
Hope your finding ww good , and good luck x