My Problem Started About A Year Ago, Right After Having

My problem started about a year ago, right after having a "Very Mild Heart Attack", (which I never felt) and the cardiac Doctor did a arteriogram or something then puy a stent in my right coronary artery. Soon after I started getting "charley horses" at night in both legs and the swelling. I waS TREATED FOR cellulitis WITH ANTIBIOTICS AND STEROIDS. (no help)....THEN AN ADDITIONAL WATER PILL , I'M ON Lasix TWICE A DAY, THE SECOND WAS LOPRESSOR.
NOW, mt calves have hardened like bricks and are painfull as hell. What is this???