yeah I have been on warfrin, 35 years old. anyhoo,I have been feeling my heart fluttering I suppose is the best way to discibe it an d ,I had a siezure about a week ago tha doctors could not explain. I am concerend some is seriously wrong I had stop taking the shot the day before I had the seizure and now because my levals fell back down I am useing the shot again , it almost feels as if I am slowly creeping up to the piont of where I was when I had that seiesure, I do not drink smoke or anything the oonly thing that I am doing different is taking meds for blood clots I have in my lungs. . How worried should I be, my side effects right now are ,having trouble sleeping, feel swallen (gained nearly 10 lbs and my diet has not changed), shortness of breath ,feel super tierd but I am restless ,head ache.lightheaded at times.these are the majoriy of them?