Week before TOM I get this crazy appetite, bottomless pit, sugar cravings..
What I do to try and cope is firstly recognising the cause helps. Also I will split my calories differently to allow room for a few squares of dark chocolate (this helps with chocolate cravings so much seeing as I kinda hate the taste lol)
I make sure I get my calories worth more than I do usually, such as eating huge bowls of soup, huge salads to accompany sandwiches.
Also lots of hot drinks, herbal teas, regular teas, coffee and low cal hot chocolate.
I think what is helpful to try and do is not to lose control, even if you do want chocolate, count it or only eat part to satisfy the craving. Plan for it rather than feeling bad about it. Remember the increased appetite/cravings will pass