Good luck tomorrow - mum's intuition is a powerful thing!

FWIW we think my son was born with a dislocated shoulder and we didn't pick it up until he was 9 weeks old. He showed no pain, had limited movement in his arm, but we thought it was due to his torticollis. It was resolved when he went for his xray and the manipulation to put it in the right possie for the xray set it back. He has absolutely no problems with his shoulder now. I think though, if he's never had problems before, then he would show pain if there was something wrong. Best of luck x