When my 41 y/o daughter was training for her black belt in Taekwondo, she had shoulder troubles. Infact, she took her black belt testing with a torn rotator cuff! Had to take 4 weeks off I think it was. She didn't need surgery, as it wasn't a bad tear or healed on it's own with just resting it. Her f/u scans showed no tear anyway.

Maybe you just need to give it time to heal and not stress it anymore than just "normal daily living activies". Something non of us likes to hear when we are motivated to be extra active. to you and your shoulder.