I had my valve replaced in 2008. I’d been very diligent about dosing, and testing until about April of this year. I had a little surgery, and bridged with heparin but I am missing doses for weeks at a time. It’s like I just don’t care any longer whether I take my Coumadin, or any other prescribed meds or not. If I go back on the warfarin am I going to loosen up any gunk and cause a stroke? I don’t have a doc to talk to about this, because I don’t really want to confront my ambivalence with him. . . .