I don't know about
those other tests now, but I do know that fluid around your heart isn't good. Hopefully they can treat it before it becomes worse. A low sodium diet is a good thing for the heart, (not really fun for us) but it helps with fluid retenion. If they caught it early on that you should be ok from it. I hope they can figure out what is going on with the rest! I know how frustrating it is when you just want to know what is going on and can't get it treated unless they can find the exact cause, it sux!! Good Luck.