I second canio on the low carb thing, but will add that primal has different flavors... Meaning that people tweak it to fit their needs. So my primal is pretty low carb because if I eat one, I want them all! Fruit is especially tricky. It makes me want stuff that is bad like candy and junk food.
But to answer your question, PMS is awful for me when it comes to carbs. I started using an ovulation calendar online to track it. During the luteal phase (which can be between 10 and 14 days depending on your cycle length and happens after you ovulate and before you start your period), I want to go carb crazy! It drives me crazy every month. I'm trying to get rid of a tiny more bit of fat, so I like to stay low carb generally, but during that time, I slightly increase my carbs and make sure I eat them WITH fat and protein. Otherwise, my blood sugar gets wonky. I also opt for sweet potato over white- white makes me want dessert. Bananas send me down a spiral too- I stick with berries or cherries. If I am craving dessert, I blend coconut milk and mashed sweet potato into a smoothie and that works sometimes. When all else fails, I go for a walk on the trails and get my heart pumping.
Don't let anybody tell you, "You can't" just because they can't.