Dear sir/madam I have been experiencing a wide fluctuation in my weight in a very less time (i.e 2-3 days. At present my weight is 59.5 but my weight 2 days before is 51.5.this weight fluctuation is experienced 2-3 times in last 1 month. There is no intake of drugs of any kind and there is no symptoms of any kind of edema. No other symptoms are seen. What would be the cause of this.