shoot yeah! it gets crazy. though, i have a med from the doc now that's helping with pmdd and my cravings are now limited to just two to three days versus the two weeks i was dealing with before the meds. it's really hard. though, this past month i actually did well with the meds and when i was craving..i ate it, but had a healthier version. for instance - i wanted pizza...BAD....so i made some wheat dough, used low-fat cheese (lightly) lots of veggies and a few pieces of turkey pepperoni. that way the whole family would eat it and i didn't do too bad....well, not as bad as i would have if i had ordered one..ya know? so i try to think of healthier ways to cook what i want when i know those times are coming.
as for chocolate, i don't have a huge problem with that, but i try to drink chocolate milk or i've heard recently, that if you eat a citrus fruit in place of the chocolate it will help to eliminate that chocolate craving. i've yet to try this advice, but i'm interested to know if it works.
it's a very hard time, but just work through it. whatever i gain in water during that week (and maybe from some bad food choices) it's usually gone the following week and i feel back to "normal". good luck!