I put on a bit of weight after giving up nicotine.
What I did was stock up on celery and every time I wandered towards the fridge I would grab celery and nothing else.
I ate a lot of celery but I also lost a lot of weight and more importantly I lost the urge to go to the fridge every time I was confused and trying to figure out why I was standing up.
If you are an ex-nicotine junkie standing up and not knowing where you are meant to be going is pretty common.
Your body is asking where the nicotine is. It's trying to get you to go to the shop (like a child dragging a parent to the toy section of a shop) and get some but you confuse it with the celery.
After a while you body will say."What's this celery doing in your hand are you insane?"
You can reply to it by saying. "Look mush... I'm not the body asking my brain housed personality questions , leave the talking to the mind you fool!!"...if you like.