four blocked stents

in march of 2008, I had 99% blockage of the LAD, also suffered a heart attack, two drug coated stents were inserted and I was put on Plavix for one year. In June of 2009 , I developed chest pain, a diagnostic catheterization showed that those two stents were blocked and there were two areas of blood clotting and scar tissue in the lower part of the LAD, two more stents were insterted and back on the Plavix, three days later those stents are blocked. the treatment now I'm told is medication NORVASC, which makes me extremely fatigue, weak, no appetite, it has been 11 days since the third cath and I still don't feel well.....
any comments?