Ok, here's a few things that come to mind.
I have noticed that those of us with less to lose stall faster. I'm not saying your weight issue is any less hard for you than someone that has 90 pounds to lose so please don't think I am minimizing this.
Post a typical menu for a day - be honest and list everything - water, supps, WF products - everything. These girls are amazing at seeing issues!
Have you added anything in the last few weeks that you didn't have in the 1st weeks? I added bars and they just about killed me! I wanted sugar SO bad and was SO hungry after I had them. Had to quit them - for now.
Stay off the scale - it isn't nuthin but a number! It's a crazy maker. Just weigh at your clinic. I 'gained' 5 POUNDS overnight once. Seriously, it's evil.
This plan is designed to make it easy for you. No carb/calorie counting. They did that on purpose. Just have a packet, don't worry about the added carbs from the veggies.
If you want to add walking into your day, go for it! Moving will help your mind more than your body.
Has anything else happened that could have derailed you? If it's a sudden change, I may look to something other than the diet or lack of loss in pounds.
You are stronger than you think you are. This is just a blip. If you find yourself reaching for the Nutella, go for a walk, drink a glass of water really fast (makes you feel full!) have some hot tea, a few pickles, call a friend, brush your teeth, jump online and look up a new recipe. It really is just a temporary thang!