I have been experiencing swelling in my right leg, especially around my ankle, the back of my leg is sore. How do blood clots feel and look if this is problem with the soreness on back of leg? I am on meds for hypertension, have a pacemaker defifib, and told recently have kidney damage. I am waiting on doc apt for results from an Ultra sound for kidneys, in mean time my cardio took me off my water pill, and Lisinopril 40mg because of finding the kidney damage.