I am trying to lose weight through Slimming World.
Took a break for a few weeks over Xmas, gained a bit. Started again back on plan, after first week I lost 2lb. Second week I lost 5.5lb.
This week, I put on 4.5lb 
I have stuck to plan - I had one day at the weekend where I wasn't 100% and prob went over my syns as had several glasses of wine, but other than that, on the other 6 days I was fine.
I am now almost afraid to eat. I have 2.5-3st to lose, I am terrified of being stuck going backwards and forwards at this weight forever :( Esp as I have no idea how I gained this week!