Simmy it's good you have analysed what bits and pieces have been creeping in and great it is a STS. If you stick 100% over the next 8 weeks you could potentially lose 2 stones or near enough.....so think carefully how you will handle social events. If you are exercising on SS you could be slowing down your loss but I have to say I did both when I first did CD in 2008 and it didn't appear to affect my losses. It's just the calories are so low on CD when you exercise you need more it can be counterproductive with such low calories so be careful. Do some planning (along with excel spreasheet yup! I'm making reference to Tizzy's spreadsheet!) for how you will handle social events what foods could you eat that wouldn't affect ketosis and how could you avoid eating without attracting attention to yourself etc. Plan, plan plan for social events, moments of weakenss from stress, feelings of deprivation all your emotions. Look at distraction techniques for when it really gets so hard you feel like eating cardboard for something to chew. You'll do this.