I have been taking warfarin for over a year now. I'm not sure if...

I have been taking warfarin for over a year now. I'm not sure if my symptoms are from the meds or not. I have a very itchy scalp, and I occassionly have difficulty swallowing. Right now I have a pinched nerve and right shoulder pain, have had it on and off for 6 months, my right index finger was numb and tingly for a month. I am currently seeing different doctors to see what the problem is, so far nothing. I'm hoping to go off Warfarin soon, against my hematologist's advice. Has anyone had any similiar symptoms while taking warfarin?