My detais are as follows;

Age;  42 years     sex; female    Marital status ; Married            No. of Chidren; 1

Profession ; Medical officer  

 Height; 4feet 10 inches        weight; 54Kg

Level of physical activity;I have busy shedule but physically not much active  It is quite difficult for me to do regular exercise due to my busy shedule  although i have tried hard.

Medical history ; No  major illnesses at the momoment but past medical history of gestational diabetes mellitus +

Family Medical history; Diabetes Mellitus ( Mother, Father, brother & sister ), Isheamic heart diease (mother, Father ), Obesity (siblings)

problem; From my teenage years my main problem is regaining weight after frequent horrible stuggles of loosing weight from about 65Kg to about48- 50 Kg.  I have gone through about 5 such episodes. At all these instances I gained  weight at a faster rate than loosing causing me much anxiety.

My main sratergy of loosing weight had been either by exercise or by dieting and some times by both methods. But after each big struggle i regained weight at a faster rate. At the moment Iam on a diet

My daily dietary recall;

Breakfast; tea+ 1 tea spoon non fat milk ( No Sugar)

                1 big banana

Lunch: 1/2 cup of boiled brown rice, 3 tab spoon of vegetables,  one small piece of fish/ dried fish/ chicken

Afternoon; tea + 1 tea spoon of non fat milk ( No sugar ), one slice of brown bread with curry or 2 sugarless buiscuits

Dinner; same as lunch

Rate of weighr loss; I loose about 1kg in five working days but regain that amount in just 2 days during the week ends when i have some rest such as an afternoon nap and better eating ( not over eating ) 

My worries; People of my height  and physical activity level are having normal meals and are not gaining weight where as I am always scared of food and my life is a constant battle agaist extra fat 

What I think the cause of my problem; Multifactorial ie. Genetic predisposition for obesity, ?Low BMI, No regular exercise, Not knowing how much calories I need to eat, Frequent episodes of loosing and gaining weght

QUESTIONs

1.WHAT IS THE CAUSE OF MY PROBLEM?

2.PLEASE TELL ME THE AMOUNT OF CALORIES SUITABLE FOR ME AND THE LEVEL OF PHYSICAL ACTIVTY I SHOULD MAINTAIN TO HAVE A CONSTANT WEIGHT AT OR AROUND 50kg