a quart of water (fluid) weighs over 2 pounds so it is highly likely that you need that diuretic and perhaps need to watch your sodium (salt) intake. you should not stop your bp medications unless you get the okay from your medical provider. swollen ankles may not be your only problem. you blood pressure may be elevated (again).
stopped a low dose blood pressure med w/diuretic. in 1 week of stopping i have gained 5 lbs & have swollen legs/ankles. do i need to go on a diuretic?