Hello doctor, I am on warfarin for life. Yesterday, while I was working in my house, I knocked the upper back part of my head on the marble roof of the window pane. It was neither a hard blow nor a soft one. It was medium. I did not feel any pain. I did not have any blackout but was stunned for two to three seconds. Today, my INR came as 3.73. I do not have any headaches. My question is, will I be having a stroke?
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