My left leg is sore and my leg and ankle are swelling. When I walk, the calf hurts. My right leg also swells up from time to time. I have been drinking alot of water lately hoping to bring down the swelling. Also I have pain in my lower back. I have also been ill since November 2013. I had a pulmonary embolism. I am on coumadian, I had blood clots in my lungs which was straining my heart. My heart is normal now. I still have some clot left in my lungs since my last tests. Also I had surgery in March 2014 for a hystorectomy.