I was wondering if you fell off the wagon. It was Day 6 or 7 when it was the hardest for me to not eat carbs also. Maybe that's the day your body realizes you didn't just forget to feed it carbs but are trying to evict them altogether.....they revolt!
It was a real mental/physical battle on day 6, 7, 8 and then a bit less so on day 9 and 10 and then it just stopped totally for me after that. It was day 11 when my appetite and cravings just dropped like a stone and I noticed I stopped thinking about carbs and food in general totally and had to make a concious decision to eat instead of being driven by hunger/cravings. I am on Day 67 now and still have to make a conscious decision to eat at least two times a day but I am sure it's because I haven't dared to eat any carbs as it just starts the cycle all over again for me.
This time I was prepared for the battle because I knew it was going to be really hard around day 5/6/7. I had had a couple dry runs in the months preceeding that didn't go so well so I knew when to strap in for the ride.
Prep was key to me. I threw out ALL carbs in my house (except a bag of flour) so even if it got really hard, I didn't have anything handy to cheat with

. And I had done all that prep work as I described above in a post.
Congrats on the 7lbs!