Amused you have my sympathy. Although I have not been diagnosed with BED I think that is purely because I have never admitted to anyone else that I actually do it and struggle so much with it. I have now been doing SW for 18 months and I have had a few episodes of serious bingeing over htat time. The difference I find with SW rather than every other "diet" that I have tried in the past is that I find it easier to wake up the day after a binge and be straight back on plan, whereas in the past I would continue the binge for days on end and give up any idea that I could possibly lose weight anyway.
Welcome Pipsqueak. Sorry your 2nd week did not go as well as you had hoped. Did you continue to weigh out your Healthy Extra A & B's? Did you drink as much water? Sometimes there is no reasoning with our bodies and you just have to trust the plan, keep going and you will lose again next week. Keep going. 
A totally undeserved 1lb gain for me last night after a week on plan 100% and a couple of SP days, which really annoyed me and sent me straight for the biggest piece of chocolate cake you ever did see!!
This morning AF has arrived, so that explains my gain and also my desire for chocolate cake! I am going to be writing everything down again this week to keep myself accountable.