Boys need not apply. lol PMS Question.

So how does it work? When following a diet, with an average planned weightloss of about 2 lbs a week, where does the weight actually come off when we can fluctuate by two lbs or more if we are weighing daily. Explain this PMS thing too.

I know, we shouldn't weigh daily (honestly I forget to weigh myself for a few weeks at a time in the last few months).

Water weight and other things aside, I just don't see how anything will come off. I screw up often, but not horribly, like I eat 1800 calories instead of my goal of 1400 or 1300. I seem to be basically maintaining since my nasty little gain finishing college. So I stick to my "healthy" diet, where I watch calories, try to make better choices, walk more, exercise, etc. So I hum drum along doing this for weeks. I see a loss. Not much, just 227 down to 223.Then eventually, I have that gain of 5-8lbs near the "time of the month". I hit the 227 or tops of 229, after about a week and a half of that nonsense, my weight begins to slowly creep back down to that 223 over that same few weeks. So how do I get out of this? It's like this odd cycle where for 3-5 weeks I'm slowly losing, the "HEALTHY" way and I gain it all back during that time. And it's really very odd because I'm not very regular. I can actually tell when I'm likely to get it simply by the weight I'm "gaining back", rather than any monthly regularity. I've gone up to 55 days in the last year betwee. I've seen a Dr. They recommend b/c. I noticed a hefty gain when I first was on it and then I had a dramatic loss (break-up and decided to go off pill, because who needs it if you're not gettin busy...) I don't really like being on it. I'd rather not add hormones, and the majority of these pills warn you that they may cause weight gain.

Someone explain what the heck is wrong with me!