I think a lot of people experience that during the colder months, so you're not alone that's for sure!
Why don't you make some of the WW no points soup that Dolly has mentioned before? It's yummy and warm and really good for you, so you could eat as much as it takes to turn off that nasty 'hunger button'.
If I get hungry on the TF diet, I eat some diet jelly or some no points soup (minus the carrot) and I'm ok.
Worth a shot and will definitely warm your tum