I m a 74 year old white male, 67 inches tall, 170 pounds, reasonably good health, but have had A-fib for many years. Warfarin dose of 4 or 5 mg per day taken as a prophylaxis for clotting (strokes, heart attack, etc.). Lungs, kidneys, liver health is good. Some diverticulosis but no bowel problems for a long time; for over a year I have taken 1 20mg capsule of Omeprozole daily for control of acid reflux. Lately I have been experiencing an uncomfortable, tingley, sort of numbness, almost but not quite pain, in my legs from the knees down. I m wondering if this is some pre-diabetic symptom, or something related to my circulation or warfarin. Any comments?