That must be a horrible feeling. Maybe drive a different way home? Pack a bottle of water and some nuts in the car for the drive home? Brush your teeth before leaving work?
LOOK how far you have come. One thing I have used to keep me going is a 12 pack of diet coke. I don't drink it. It weighs exactly 10 pounds. Every time I think about going a little crazy with the food or drink, I pick up the 12 pack and remind myself how heavy it is, and I imagine carrying 4 of them everywhere I go as I have almost lost 40 pounds now. I tell myself how much better I feel, how much easier it is to walk around and ride my bike.
When I quit smoking, 30 years ago, I didn't tell myself I was quitting. I just said I wasn't going to smoke that day. I told myself it wasn't good for me or my family and that I could go another day not smoking. It worked and I still tell people I haven't quit smoking; I just don't smoke today. I also bought myself flowers every friday
So - today - you didn't stop. Good for you! Also, maybe you need a diet break and to work on maintaining for a while? Maybe your body needs a weightloss break. 84 pounds already! Wow.