Warfarin Sodium and fingers

I was on Coumadin for a blood cloth I had last year(I originally started on 2.5mg and kept getting bumped up higher and higer as my PT/INR tests kept coming back).

I had most of the symptoms described here. The three worst being fatigue, memory loss and hair loss.

I remember constantly being tired on this medication. I had to go back to work after a few months and I remember not being able to lift much of anything and being extremely tired.

When I would take showers I remember running my hands through my fingers and literally pulling out clumps of hair. Each and every time. I thought I was going nuts.

The worst was the memory loss. I had severe short term memory loss like you wouldn't believe. I would be fine one minute and then space out and I literally could not remember what I had done the day before.

My father has been taking Warfarin for 13 years now 2.5mg a day. He's been complaining of headaches, heavy feeling in his head, dizzy spells, extreme fatigue,swelling of his legs, spontaneous numbness of his fingers, blurred vision, cold hands and feet, loss of balance and memory loss. I have spoken to his Doctors and no one believes him that the Warfarin is doing this to him. By the way, he was diagnosed with AF 13 years ago.

Does any one experience the same symptoms? what can he do? he is 77 years old.