More like lol at the OPs update pretty confirming he was too old. Tore a rotator cuff which could adversely affect his job as a mechanic for a long time. Know a couple people with torn rotator cuff that didn't heal properly (not uncommon even with surgery). Wish you luck healing OP.
I did not read the update but 34 is NOT too old, that injury could have happened to anybody. It's not like he is in his 80's.