this book describes exactly what i and many other women in their mid 30's to early 40's are experiencing regarding a seemingly uncontrollable increase in weight and size, no matter what we do concerning diet and exercise.
jean perry spodnik explains what is happening to the over 35's body internally and externally, and gives hope on how we can overcome your issues of weight gain and water retention using her changes in diet, and maintain it.
(i have not tried it yet, but it looks positive).