I'm 48 Just an over achiever. It took me a long time to feel pain lets put it that way. Tore a rotator cuff in the left shoulder, had to have the inside of the right pinned, and torn meniscus in both Knees (one twice) . L5S1 in the lower back. Still have two more bad disc's above that, and one in the neck.
(the neck is combination from Steel pot in the Army and riding. )
But hey I can walk and do most anything I want to (slower than before..)
I was not far from a wheel chair before he fusion.
I am pretty anal about the detail work so I am sure it will take me awhile to get it done, But I will have it ready for riding season.
Commuting didn't hurt any of my ailments last year and I think helped my BP.
Have a good ride Doc.