Hello, my name is Marsha. Last November, I had my left knee amputated due to four rods put in my left leg. Had to get a second option to have it removed. Now I have increased swelling in my right leg, and take a 40mg water pill everyday. The swelling won't go down, can't wear a shoe. The swelling is even in my hands and all The way down to my foot. Just turned 65yrs old, May 24. What is causing the swelling now.?