Such great suggestions! I just want to say I'm rooting for you! It's so very hard at times. Such a struggle and really requires a tremendous energy, like pushing a stone up a mountain. And it sounds like you've got other things going on right now requiring your energy. So, no wonder you're having a hard time.
Wish I could wave a magic wand and make your back better and you completely over being ill.
Maybe start knitting? A distraction? If distracting doesn't work, it helps me to be really conscious right before eating anything and make sure it's my choice. And, if it ends up being something off plan and I choose to eat it, to really understand my motivation. And be ok with it for that moment, if it's what I truly want considering the future and it's consequences.