Hi
I found out a family member has cancer (again) yesterday and I ate everything I came in contact with (at least, what was edible!), including cookies, chips and choc covered almonds, plus four bunless burgers (the list goes on). I think emotional eating is a way to comfort ourselves, definitely, so try to see what are your comfort foods and make them lo-carb.
Some of my comfort foods include coffee and especially tea, chicken soup, cinnamon, mashed potatoes, and probably some others. Soooo, I have cinnamon in my tea or coffee, I look for lower carb chicken soup (Campbell's is under 10g carbs), and I mash cauliflower with tons of salt and butter.
Talking and reading help when I am emotional about things, whether it was learning about this form of cancer, or a self-help book (good if they're funny, too!), whatever.
Good luck, and don't worry about a one day bender. I'm not, even though I am probably back over 140 today
Mary