I wonder if you have a hypermobile lumbar/thoracic spine, which has lead to duff mobility in your shoulders/chest/etc.
In other words, you have been used to lifting and extending through your back rather than your shoulders, meaning your shoulders have spent [however long you have been alive] years not doing anything... and now you're reaping the nasty rewards from this. Either way, keep your shoulder mobility going. Stick balls all over your shoulders, etc.
I dunno. Just ruminating.
In other words, you have been used to lifting and extending through your back rather than your shoulders, meaning your shoulders have spent [however long you have been alive] years not doing anything... and now you're reaping the nasty rewards from this. Either way, keep your shoulder mobility going. Stick balls all over your shoulders, etc.
I dunno. Just ruminating.