I have previously noted that I have a surgically reconstructed R shoulder (detached biceps tendon while doing bench press) which now feels strong, stable and never a hint of pain. And I have an unstable L shoulder as a result of torn cuff in an auto accident (impact on driver's side door pillar) in 97. They cleaned up things but didn't repair the tear in arthroscopy a few months after the accident. That instability leads to knots in scapular area on a regular basis as other muscles compensate by trying to stabilize the shoulder. I get treatment, usually massage and acupuncture, and pain dissipates. Until it returns.
Not an impediment to swimming though.
The impediment to swimming is my calves and feet which cramp after 100 or so pushoffs.
Head Coach & Chief Executive Optimist
May your laps be as happy as mine.
My TI Story