Warfarin Sodium and heart rate

i have been on warfarin since April 2008 when i had a clot in my left leg. since, i haven`t really had much going on until last week. i was rushed to the hospital by ambulance. i got dizzy and had a very cold wave rush up my body twice. when it was over, i couldn`t hear anything and my temples were tingling and my heart rate was elevated along with my bp. the er drs didn`t seem concerned with any thing that had to do with the dvt or the warfarin. their response???????? you drink too much coffee. WELL. i haven`t had a cup of coffee for almost a week, and have also quit smoking. i am still dizzy. my head feels heavy. i get little cool rushes that almost take my breath away, i don`t feel like ME. i feel like someone has taken over the me i knew. my family doctor has done liver, mono, hepatitis, b12, folic acid profiles, all negative. had a ct scan yesterday, normal. having an echocardiogram next week and having a holter monitor put on for 24 hrs to monitor my heart. i have done nothing but sleep since this episode. my husband is scared to death i`m gonna die during the night, he wakes up just to check on me. i haven`t been sleeping very well, as i`m afraid i`m not gonna wake up. i am only 40. i am not ready to let my life go to pot because of a drug that all the doctors insist is "safe". well i don`t know. call me stupid, but if its so safe, why do they kill rats with it????????????

I've been an extremely healthy and active individual all my life until I injured my back at work recently. I'm 36 years old and had back surgery in February 2008. I subsequently developed a severe DVT in my right leg which then turned into bilateral PE's. I've been on Warfarin since April 2008 and continue to feel extremely lightheaded, dizzy, and very weak. My blood pressure and heart rate have steadily climbed. The symptoms have been passed off as factors of the PE's, but I have been off of Warfarin for a couple short periods due to additional procedures and have felt better. My doctors say that my symptoms are not due to Warfarin and I've been thinking that I'm dying from something else as they run test after test with no real results. I wish I could find out if Warfarin is truly to blame. I thought maybe I was going crazy about also having difficulty concentrating and remembering simple things. I can't deal with living like this forever.

Been on warfarin about 3 weeks due to an a-fib condition.. Dose is 2.5mg a day. Since starting I cannot sleep, feel very tired and fatigued and slight sour stomach. Doctors say this is due to the a-fib but I don't think so. All I hear from my doctors is no side effects. Hs anyone else experienced these symptoms, and/or is there a website where I can find some answers.