I joined SW a few months ago, though not done well, so I told the consultant that I am having a good Christmas foodwise and then come New Year I am going to eat healthier and that means something like a Freddo chocolate frog each day.
Also exercise more, become a couch potato again, so might start off with a 100 calorie burning exercise sheet. Got it from Health Trainer. So shall start that before January.
Even if it's just marching on the spot only, just to get off my bum, it'll be something!
I too have back probs, it could be sciatica, however, I have been naughty by not putting my orthotics in my trainers. So whilst I'm in house I shall wear them!