Welcome to the forum Phil , it`s a drag that you had the set backs you have had . It`s great that you power on , and music is back with you . I have been playing for 54 years and about ten years ago I had a pinched nerve in my left arm . I couldn't play for a time but eventually my strength returned . The only therapy I did was ,to keep trying to play and I was fortunate . For that relatively short time I could only imagine what you have been through . Your a great inspiration to us all . Celtic music is cool . Enjoy