C.B.
You do need to get into seeing a Doctor again asap! My mom went through something similar about 5 years ago. A virus attacked her heart and cause the swelling- she was in the hospital for a couple of weeks. She had to take the water pills and now has to watch her salt intake. She is eating heatlier and using different cookware and is doing much better now. I will send you her email she just sent out about how she is doing now- maybe it will give you some hope.
Good Luck!
~C.