About 4 months ago I had surgery for a compressed ulnar nerve. Symptons were numbness in the tips of my left pinkie and ring finger and loss of strength in my left hand. Six weeks after the surgery I had lost the numbness and gotten almost full strength back in my hand. My surgeon was amazed that the strength had returned. I wasn't able to ride for 3 weeks while I had a cast on. I started riding again 50 -70 miles a week. At this time the numbness is still gone but my left hand weakness is returning. Can this be riding related.