I experience severe swelling in my legs every 3 to 5 years. It will stay for a couple of months then goes away to give me a break again. I thought that the last round was caused by sewing....so I stopped sewing. Now, it is back. I realize because of the situation I am in....the actual cause may be long times of sitting. That's it. I am going back to mild exercise. Build up my time to do that and monitor the things I know that can cause extra water retention. On other rounds, I was tested for blood clots....none. Heart problems....none. Tried support hose....disaster. I am actually relieved to know that I can go back to sewing as long as I take frequent breaks. One of the things I do that is counter productive, when I get overwhelmed, I quit exercising, not a healthy choice. Back on the elliptical, easy on the knees and safer than walking out in 90 degree F weather. Yup we are headed towards triple digit weather already. I'm bummed. The older I get the harder it is for me to tolerate the heat. Learning, listening to my body, and readjusting my behavior.