Thanks everyone. I think I will seek a physiotherapist or PT. I believe in PT, it works (if done right).

I'd been working out at the gym for the past several months doing upper/lower body workouts 2x/week, in addition to cycling and other cardio work. I had 12 sessions with a trainer who is a retired PT. I might have done too much, too soon, but nothing hurt and I was feeling great, getting stronger, seeing the muscles shaping up. The rotator cuff is not a muscle group to reckon with, and I want this to heal.

At work I am in training on the Urban Search and Rescue (USAR) team. Currently we're learning rescue rappelling, which sometimes requires pulling hard on the rope to brake my descent. If my arm doesn't heal, I may not be able to do this at all.