Blood Clot - Seriously?!?

Anyone else around here dealing with blood clots? I was seriously knocked over by a feather this summer with a renal infarct (blood clot to the kidney). I'm now on a blood thinner and working toward finding the source of the clot. I have just resumed workouts, but keeping it low key, per the cardiologist's instructions until we have all some answers. Since renal infarcts are not overly common, I haven't found someone to commiserate with. I'm hoping this might be the place.