You should contact your doctor. Tell him you are swelling up. He might order a diuretic for you.
You need to be careful of limiting your fluids because you need to stay hydrated then you need to watch what you put in so you don't swell much. It's a catch either way.
The best thing is to contact the doctor.
Also with diuretics they can deplete you of potassium and other vitamins and minerals.
You might want to talk to the doctor about this also.
Are they running any tests to see why this is happening?